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're installing proton ge, you should set compatibility mode to proton ge. Proton experimental is Valve's experimental version of proton, not GE.
Not doubting you - I thought experimental referred an additional compat layer you select via Proton UP?
I believe the experimental option is always there in steam, even if you've never used proton up. It just contains experimental features that valve hasn't put into a regular release yet.