Based on the system information, you should run the game just as fine. You may be running the game with vulkan rendering? It is a reported issue that Vulkan breaks the game on Unix machines. Try using -dx11 on the Steam Launch Options to launch the game using DirectX instead of Vulkan. Also, use the latest version of ProtonGE for the best performance, as the other version seems to not work as efficiently as the latest one from the repository.