The native Linux version is broken. It only shows a white screen.

If you're using a Steam Deck and are in "desktop mode", you can't alt-tab, alt-F4, or close the program in any other way because the controller layout is automatically switched. With all inputs rendered useless, you have to hold down the power button and hard reset.

There are two different solutions for this:
 - Set the launch options to: -screen-fullscreen 0
 - Or use the Windows version by putting a check in the box at properties > compatibility > force the use of a specific steam play compatibility tool. The latest version of Proton will probably be fine. NOTE: This method will cause Steam to redownload the game.

Aside from that, it seems cloud saves are broken. They won't be shared across computers/devices.

Finally, frame caps are a problem. You can enable vsync in the settings, but you'll have to do it every time you start the game. There's still a checkmark in the vsync box but it won't be enabled.

If you're using the windows version, you can force a frame cap by adding this to the launch options: DXVK_FRAME_RATE=60 %command%