
It works just as well as it would on Windows, which shiould be a given with how light the game is.
I've only tested on the forced experimental version of Proton; I'm not sure if this game works on regular proton, though it should work as expected either way.

Played over 200 hours on Linux - experienced no issues
I have yet to experience any serious issues with the game. Everything works well
il gioco funziona out of the box
Initially thought achievements didn't work, but the first achievement just didn't trigger when I expected it to. Not a proton problem

Achievements do not appear to work.
Fullscreen and Settings result in crash
Attempting to enter fullscreen would result in a game crash.
Always crash when attempting to enter fullscreen or open the ingame options menu
Notably, on proton experimental, I experienced graphical lag spikes every so often. This was solved when I changed the version of proton.
PROTON_USE_WINED3D11=1
Making the sound driver ALSA
Using Pipewire
If you can deal with no achievements and sound it works fine.
Sound and music randomly stops and starts. Long periods of absolute silence.
Achievements do not activate.

Чомусь на стандартному не запускається
The periodic slowdowns when loading new assets have been resolved. Interface still appears touch-centric, but perfectly playable with kb+m.
Running Proton 6 GE-1 and have not had a single issue. Play just like my "HTPC" running windows on the living room PC.
Only remote issue was the music slider. When I lowered Music to ~20% it would just drop off. After leaving the settings menu it was back. Dont remember having that issue on PC. Hardly gamebreaking.
first few minutes after launch game freezes in menu but then run smoothly

Very playable, with some periodic freezing
Periodic freezing while loading assets