I had black box in the middle of the screen when I started the game.

"GeForce GTX 1650" is my video card, so for everyone it will be different name.

This launch options worked for me, but if that doesn't help you, you also need go along the path: ~/.steam/steam/steamapps/compatdata/534380/pfx/drive_c/users/steamuser/Documents/dying light 2/out/settings

534380 - game App ID. This Id will help you quickly find files on your PC. In your case, everything will look about the same.

There is a file: video.scr And it needs to be: RendererMode("d3d11") AsyncCompute(0) Not d3d12, despite the fact that during the game you can change everything as you wish (this does not negate the fact that everything can break again after graphics changes). In addition, most likely you will also need to lower the graphics using this file by changing other settings.

I also set compatibility with Proton 7.0-4.