Very bad performance, between 10-20 fps on low settings and 1080p.
Using OpenGL wined3d instead of vulkan with PROTON_USE_WINED3D=1 improves the situation. Can get 40-60 fps up to very high settings and 1080p.
Execute the game until you reach the game lobby/parking where the fps drop.
Compatibility Report
System Information
I confirm:
https://drive.google.com/file/d/1Pz1y221bKqVMEgySmajlKEa8419JIy26/view?usp=sharing <- this is the proton log, its too big even compressed and github wont let me upload the smaller .tar.xz version
crash_report.tar.gz <- this is the unity crash dump
Symptoms
The game runs reasonably well in proton but randomly crashes in the middle of matches. The unity crash reporter pops up, cleans up, and then the whole thing exits.
Reproduction
Play for a while, it takes 5-10 matches generally to see it.