Level1 has looked at the B580 on Linux specifically: https://www.youtube.com/watch?v=Tv0o6505JAc
I think most of the issues with games not working should be the same between windows and Linux driver versions, and HardwareUnboxed has done some pretty exhaustive testing recently on the “maturity” of the drivers by testing a couple hundred games for obvious driver problems.
I mean they do have a point: the framework that the game is targeting is DX11, so if it looks bad it is (broadly) because of an issue in translating DX11 instructions to Vulkan…