Using Proton broke some rendering and made the game soft-lock, as already reported by others. Using the native Linux version, however, I experienced the game rendering partly outside my screens on my multi-monitor wayland setup and that made it unplayable as well. If you have similar issues, try using gamescope with the native version. I have no more issues since I started using it. The gamescope options can, of course, be adjusted to your liking.