Hi all, I installed GTA 4 Complete Edition from Steam. The first time I tried playing after installation it worked flawlessly but has been giving me this error ever since. I have tried uninstalling and reinstalling and I have tried using a different Proton version only to get the same error again. I am on Linux Mint 21.3 Cinnamon with 13th Gen i7-3700K, RTX3080 Ti and 32 GB RAM. I haven't been able to find any help on Proton DB, hoping somebody here might have some idea. And I apologize if this is no the right place for this post, please let me know where I should post it. Thanks!
If you go into the game's preferences in steam, you can modify the launch command to enable logging:
PROTON_LOG=1 %command%
Then when you launch the game it should put a log file in your home dir. That will hopefully give a clue as to what the problem is.