Do you have steam overlay disabled? If so try the LD_PRELOAD workaround by entering:
LD_PRELOAD="" %command%
in the game's launch options.
This was supposed to be fixed by now but I still have the issue intermittently with some games. Usually they just start lagging, but rarely they will full crash.
Please update once you confirm it does or doesn't work.
EDIT: More about what this variable does, for the curious: https://wiki.archlinux.org/title/Steam/Troubleshooting