Different versions of Proton give different results, none work.

Using Proton Experimental, 6.3-8 or Proton-6.21-GE-2: When launching the game, after loading Anti Cheat, I get an error message saying "Out of video memory trying to allocate a rendering resource. Make sure your video card has the minimum required memory, try lowering the resolution and/or closing other applications that are running."

Using Proton 5.13.6: The game launches and runs seemingly fine, except that the screen is completely black or some shade of blue or brown. I managed to make my way to the tutorial with no visuals at all, the screen just changed colour occasionally.

Proton 5.0-10: When launching, the game just crashes silently.

Proton 4.11-13: When launching the game, after loading Anti Cheat, I get an error message saying "DX12 is not supported on your system. Try running without the -dx12 or d3d12 command line argument.".