https://bugs.winehq.org/show_bug.cgi?id=38166
--- Comment #30 from michal.dybczak@gmail.com --- (In reply to mo78 from comment #29)
Just use D9VK. Performance is way better :)
The issue is also present on Proton 4.11-12, so D9VK doesn't help at all. The only way to play this game is to switch to Intel GPU, which is a possibility on hybrid machines.
I can't use the attached patch from comment #24 because I simply have no idea how to apply it on Proton. I don't want to tinker so deeply to run the game not knowing what it can do to other games.