The game ran without any issues on both Proton-GE and regular Proton 9.0-2

The game runs the same as it did on Windows 10 on machine. There seem to be random occasional stutters, as if the game was dropping frames, but my frametimes were consistent and there were no frame drops.

This is excatly how the game run for me on Windows as well, not sure if this is hardware related or not but I did not find anyone else mentioning the problem.