It's also a native linux game.
Store page needs updating as it shows only the Windows logo. Sorry about that.
The normal version (the virtual bedroom) is not working for me with Proton 4.2.7 (on Ubuntu 19.04). On launch, it complains that DirectX11 is not available. After adding PROTON_USE_WINED3D11=1 %command% to the launch options, it runs, but gets stuck on a black screen.
The "Simple Launcher" seems to work, but I haven't tested it thoroughly.
proton 4.2x1 2019-06PROTON_USE_WINED3D11=1x1 2019-06PROTON_USE_WINED3D11=1 %command%x1 2019-06
Works fine without issue and using USB xbone controller.
Specs https://gist.github.com/kenjara/b9aae11a5124fca193bbb6c7e5615ee8