I will have to look into this for I guess I need some reedumacations in it 
I have never really liked SPDIF back in the day unless I was playing a movie from Laser Disc or DVD, and for about 99% of the time any movies/music/or games played off my PC has been analog only, so even if they changed how the SPDIF aspect of how it decodes from back then, yeah I wouldn't of known it got switched. But I will stand firm that if someone were to just play a game using SPDIF or HDMI that in the audio section only allows you to change volume levels, nothing about compression (tv, sound bar, home theater, night, 5.1, 7.1 in PC GAMES NOT CONSOLE), and switched from that to analog if your receiver, if using one, has the inputs for it, I can tell you just using the new Crash Bandicoot game that just came out, sound definition and separation is night and day. Not so much as me, but my son and of all people my wife who is happy with a AM radio if need be for music for it all sounds the same to her, can actually hear the differences. This works with all pc games with that in the menu as mentioned or not, just going Analog again will have you go hmmm and rethink about all that money you have wrapped up in ur system trying to get perfect sound to match that perfect picture the way it was intended, and no DD live and stuff is NOT the same thing, not even close (IMHO to my ears and I do not use crap to play my stuff with or on).
On another note, I know its long but worth the read (again imo) I have been fighting myself with some games on windows 11 to crash, Forza 5 and a old game which is BioShock remastered so far after redoing my room where I am now at, getting my equipment out of the old room and into here, and now got my Hisense tv hooked to my audio card, and using the 6700XT as my audio source to my tv so when I do not feel like using my Marantz I have some good Altec Lansing speakers to use in place of my tv, but not sure if you or anyone else there is having this problem, but felt what I have found fighting windows 11 new install, some games new and old, and using the 6700xt audio vs using my creative x3 going to my Marantz receiver. I was just about to say f it all to windows 11, for I been going nuts since getting my tv in here so I can read text again, and playing some games.
The problem I been having so far with Forza 5 is the game would start, but start in the background, with a tab in the taskbar showing the game is running, and same really goes or Bioshock, starts the same way, in the background. The VERY moment I click on the icon or full size (BioShock) out of window mode and into full screen, my game goes away and locks up, windows explorer flashes, all desktop and taskbar icons go away and come back, but now either of the games, they have icons in the taskbar, but do nothing but allow me to right click and close windows and for the most part it just quits. Sometimes I have to go into task manager and kill it for it says not not responding.
Before forza would just die on booting game. If I select the desktop ico, and not xbox app, right clicking, run as admin, the game will then not crash. but do then like bioshock and wrote above. I actually got it to run yesterday and was sooooo happy, thought I figured it out. I also found out after fixing that problem and NEW Forza 5 problem came up telling me my profile attached to the game was no longer and coudnt be used to play that game. After more hours of messing around found if I make a new MS outlook email when I signed out and asked to use my original I been using for decades, decided to just make a new MS outlook email, and it worked, and after I signed out of the new email, and signed back in with my original one, it loaded up and played NP even had the save from when my son and I was playing it through my laptop browser while we waited for my pc to install it.
My son and I yesterday wanted to do some old school modern game and tried to fire up BioShock remastered, and well, it was doing above and last night I wanted to get some racing in before bed and it started crashing in full screen all over again with Forza. They both will run fine, audio is working, can here it all load up but no matter how long I let them run for in the background and feel its got to be ok now, its been running for a long time, and click on the icon, and bam, lock up, explorer restarts, no more game, audio from said game that was just playing in the background, dead, and at that point I was pissed and decided this morning when I get I up I am just going to redo my pc with windows 10 again and let 11 bake a little longer.
I was sitting here chilling, waiting for MS to make me a flash drive with 10 on it since my other had 11, and fired up my Marantz, selected my X3, and was listening to music, when it got done and decided to try and see if there was anything at all out there I was missing I have not seen or tried before I redo my pc, but the main thing up to this point, I been playing all my games on a much smaller monitor while my son been doing up my new room for me, using my X3 going to my vintage Sony set up. but for craps and giggles fired up Forza, and worked perfectly again. I decided wth, the internet guy just left putting in a new fiber box due to my other acting up, and since I been working on pc/cars/rc cars and trucks for well over 30 years (not combined) thought of all the crazy crap I had go down you would never think in a million years that would of caused a problem and did anyway, but said before I redo all of this all over again with windows 10 this time and tried it anyway, and DAMNIT IT WORKED full screen and all. wait for it 
Got into the menu of bioshock, switched from wind to full screen, 4k everything on to the max, and played the game, and was like wtf, I did nothing different but went to bed, got up, moved files around off the ssd since I was going to be redoing it, and ONLY thing different was new internet fiber box. WAIT FOR IT!
Since my son hooked a heater up in my room near my Marantz, the sub is no longer coming on, and I wanted the boom boom. I stopped the game, switched over the audio selection to AMD_Hisense so it will come out my speakers I hooked up to the tv's headphone jack, fired up the game and................CRASH!!!!!!! Fired up Forza 5 and CRASH!!!!! This was with using the old 10/21 and 11/21 optional AMD driver for my 6700xt. AND YES, I been doing this for a VERY long time, so all my drivers are up to date, all gaming software is up to date, all EVEYTHING is up to date and using the windows 11 drivers only, and when I switched back to my X3 and Marantz, they worked perfect, switched back over to AMD and using my tv, even switched it from DP to HDMI and tried several different DP and HDMI cables cheap and high dollar with NO change at all, crashes all the time all over agin till I select ANYTHING BUT AMD from the list. And YES I have configured it and set up its properties to make sure nothing in there is causing a issue like between bitrate/HRZ and my tv trying to play it, but since all BUT games seem to work with AMD selected, I can only at this point assume it has to do with AMD's audio driver and windows 11 not liking each other. But shut them down, switch to AMD for audio and select my TV for the speakers, and those games crash all over again when ever they go from running in the background to clicking on icon in taskbar trying to run full screen.
So far those have been the only 2 games I have tried so far after loading up windows, doing all the drivers, reinstalling Origin, GOG, steam the like trying to play them using the Audio from my AMD 6700XT.
So not too sure what the heck is going on here, but so far felt it warranted enough of my time in what I have found, and why it is Forza is crashing for soooooo many people, and now with bioshock doing it, but both run perfect if ANY other then AMD being used for audio, seems to only be effecting games I can tell, doesnt crash with music, surfing, or movies, just with games, and AMD as the audio souce/driver with windows 11. I plan on trying some other games ( I have almost 2K alone in Steam not counting all the others, I love Fanatical) and will post more game finding later today as I try them before I redo my pc later today or tomorrow with windows 10, for if it is the AMD driver, and its Audio software causing this crash to me, and millions of others, I really do not have ANY way to find a updated driver just for my Video cards audio.
So take with a grain of salt. Not sure if you or others are having this problem, but AMD and games using my video card as the audio source is a HUGE no go when trying to play a game. Any other audio selected but the AMD one, and games work perfectly fine (well aside of Forza and that error saying my liked account to the game is no more, but figured that out), but this one was killing me for days I been trying all I knew, and read, and was just about to give up, but had my son forgot to plug my sub in, and using my Marantz and 7.1 Analog to it, then Switching back over to my tv, and doing all I been fighting with for hours and days, never in a million years would of thought it came down really to the freaking AMD sound capabilities and windows 11 causing the crashes in those games so far, and have a feeling the list is about to get HUGE in a few hours
Sorry again for the book, but felt this was too important not to share my findings since the OP started off with saying his 6800xt and audio from it has been acting a fool, and not sure if he is running 10 or 11, but if 11, here is your fix. Dump 11, go back to 10, AMD audio driver will now work fine, and wait for 11 to bake for a bit more
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Game edits:
Steam Games:
------------------
Bioshock Infinite-Gets into main menu, set game up, selected my saved game and went to load up my saved game after menu screen, said loading then.....CRASH! Selected then my Marantz and X3, plays just fine.
GRiD 2019-Does like Bioshock and Forza, but doesn't even make it to menu before it crashes windows explorer. Works fine with same tv and video going from my6700XT, but again Using my X3 plays just fine.
GRiD 2-OMG what a PITA this one was! Made it to where it says GRiD on the screen and LOCKED up my PC. No hitting windows key, trying to go into task, it was just stuck on the GRiD screen and ONLY way I got out of it was to Task manager hit restart. Switched again over to my X3 after reboot of system no crashes, plays fine.
Origin Game(s)
NFS HP2 Remastered-Just flat out crashed the moment you hit play. Nothing comes up, the App for Origin locks up and need to manually shut game down. Game after about 10 min actually popped up even after closing the app, but locked up right away and had to manually shut it down. With the X3, and you guessed it, not a single problem.
Peggle-Works just fine
Bejeweled Twist-Works just fine
Star Wars Fallen Order- crash/lock up 10 min after it decided to pop up saying it was running, but no icon in the taskbar for said game. Could not get the splash screen for the game to go away from/off desktop after crash and turning stuff off. Had to reboot my pc and on X3 as audio however it worked fine.
Epic-
Ghostbusters Remastered-works fine
GTA V works fine, but with a AMD 3600X/6700XT/AMD or not in windows 11 under 25fps???
I tried a few more games, that were not small games with same results every time. I have again over 2K in games on steam itself, and I, since unpaid to fix their problems (cannot get work anywhere do this of which I love to do because I have no degree but all I know is 100% self taught), so why should I sit here in pain, mental problems, disabled, pretty much broke 24/7 as they pay millions to people to fix this of which I did in about 48 hours time? It pisses me off to no end, for I cannot get a job doing this, which would accommodate my disability problems keeping from getting other jobs that pay for crap, but because I have no papers, people in these positions getting paid the big bucks to fix something like this, or was able to figure out and diag that this was the problem they are facing to work on a fix between AMD and MS getting paid the big buck with papers cannot even diag or do their job right, but I cannot even get the work doing their job for they have papers and I do not 
Sad SAD Panda 
I think at this point after trying them, and others that if you use the AMD video Card as sound through HDMI cable and windows 11, they do NOT like each other at all no matter what updates or drivers, or anything you read on the googles is fixing this, and honestly had it not been for my son forgetting to plug my sub back in, never, EVER, would of thought this was the problem for me and man man many others out there having the same issues. Its something about digital sound and games only for everything else, including playing movies in dd/dts/dtshd/atmos using amd's sound for just games crashes/locks up windows explorer in windows 11.
Little games with NO digital stuff in them to really decode, like peggle, has no effect, just larger well known games and AMD audio crashes the system, locks up my system, hangs my system, breaks my system with windows 11 for all these games with same tv, same video card, same audio selection on windows 10 all plays 110% just fine. And if this is a bug, and why everyone is having problems (not sure if nvidia is effected in same way), could I get the credit for this if it is what I say it is?
I am about to redo it back to 10 since till they fix this with a new driver, I canno wait for it and not get to play my games, for I already had the neighbors over complaining my bass was too much when using my Marantz during a week day, so I have no choice but to redo my system back to 10, for I use this in the morning or at night during a weekday, and it is a must now that my Hisense H8G is back with me in my new room, I cannot wait and sit here with no games to play, having to much time on my hands to let me think more on how much my life sucks ass. Need to keep my mind going 24/7 with no rest for bad things to come to mind, so no books from me for a little bit as I redo it all, and reinstall it all with windows 10 again. AMD and MS fix it!
