So I guess Forbidden West specifically has an issue with something called Direct Storage in the Proton plugin, the way that it streams from Direct Storage causes way too much chop when walking in the world to make it playable. But I'm going to test it with Cyberpunk 2077 next because apparently that's the poster child for Linux gaming actually being good.
Discussion
It shows gold on protondb. There might just be a small tweak you need to make.
I tried between proton experimental and proton 9.05 I think is the latest version and I was still getting a lot of chop.
Check out ge-proton
https://github.com/GloriousEggroll/proton-ge-custom
The same dev also spins Nobara Linux which solved basically all my issues with running Steam games on Linux.
Interesting. Maybe I can dual boot that version of Linux. I was also wondering what it would take to run SteamOS as a dual boot.
I just ran into Bazite a couple days ago. That's funny.