Games crash on launch w/ NVIDIA and AMD drivers/hardware loaded/enabled at the same time.

I'm using VFIO for the occasional incompatible windows game. All games seem to not complete startup w/ Proton 5.13+ (tried 7.x, experimental, etc) whenever the NVIDIA card is bound to the host. My main display is being run off of the AMD iGPU and I'm launching w/ prime-run steam. This problem manifests with or without prime-run though. If I unbind the NVIDIA card proton runs fine. Versions of proton < 5.13 also run fine.

Issue seems similar to
https://github.com/ValveSoftware/Proton/issues/6180

I'm using Arch Linux, Ryzen 5700G, nVidia 3070

Logs attached:

slr-app837470-t20221007T121808.log
steam-837470.log
sysinfo.log

Console log:

/bin/sh\0-c\0PROTON_LOG=1 /home/john/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=837470 -- /home/john/.local/share/Steam/ubuntu12_32/steam-launch-wrapper -- '/home/john/.local/share/Steam/steamapps/common/SteamLinuxRuntime_soldier'/_v2-entry-point --verb=waitforexitandrun -- '/home/john/.local/share/Steam/steamapps/common/Proton 5.13'/proton waitforexitandrun  '/home/john/.local/share/Steam/steamapps/common/Untitled Goose Game/Untitled.exe'\0
Game process added : AppID 837470 "PROTON_LOG=1 /home/john/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=837470 -- /home/john/.local/share/Steam/ubuntu12_32/steam-launch-wrapper -- '/home/john/.local/share/Steam/steamapps/common/SteamLinuxRuntime_soldier'/_v2-entry-point --verb=waitforexitandrun -- '/home/john/.local/share/Steam/steamapps/common/Proton 5.13'/proton waitforexitandrun  '/home/john/.local/share/Steam/steamapps/common/Untitled Goose Game/Untitled.exe'", ProcID 14418, IP 0.0.0.0:0
chdir /home/john/.local/share/Steam/steamapps/common/Untitled Goose Game
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
GameAction [AppID 837470, ActionID 1] : LaunchApp changed task to WaitingGameWindow with ""
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/john/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
GameAction [AppID 837470, ActionID 1] : LaunchApp changed task to Completed with ""
ThreadGetProcessExitCode: no such process 14529
ThreadGetProcessExitCode: no such process 14527
ThreadGetProcessExitCode: no such process 14420
Game process updated : AppID 837470 "PROTON_LOG=1 /home/john/.local/share/Steam/ubuntu12_32/reaper SteamLaunch AppId=837470 -- /home/john/.local/share/Steam/ubuntu12_32/steam-launch-wrapper -- '/home/john/.local/share/Steam/steamapps/common/SteamLinuxRuntime_soldier'/_v2-entry-point --verb=waitforexitandrun -- '/home/john/.local/share/Steam/steamapps/common/Proton 5.13'/proton waitforexitandrun  '/home/john/.local/share/Steam/steamapps/common/Untitled Goose Game/Untitled.exe'", ProcID 14528, IP 0.0.0.0:0
Installing breakpad exception handler for appid(steam)/version(1665100899)
Installing breakpad exception handler for appid(steam)/version(1665100899)
Steam: An X Error occurred
X Error of failed request:  BadMatch (invalid parameter attributes)
Major opcode of failed request:  148
Serial number of failed request:  338
xerror_handler: X failed, continuing

Start with the attached Proton and system logs, especially the Proton 5.13 launch command and the X BadMatch error. Compare startup with the NVIDIA card bound and unbound, and with Proton versions before 5.13; done means the affected games launch successfully while both GPUs are enabled.