

Native version works perfectly

Not tried Steam version because all my achievements are in GoG so I was working with Lutris and GoG version. Just a warning: it seems - at least on my distro - that Lutris defaults to wine 32 bit versions whatever you choose from your system. With the 32 bit version of any wine from 8 - to experimental tu UMU to everything Lutris shows, the game hangs up when you try to save a game.
I've solved the issue above by forcing in Lutris a custom version of wine (custom meaning Lutris doesn't see it because it's 64 bit) and setting up a wine proton 9.0.2 64 bit executables: the game response time are fascinating totally instantaneous and at last the save game feature works perfectly.
It took me three days to realize that but now the game is installed and 100% working from Lutris. Next days I'll try with GoG Galaxy: just to have achievements even while playing in Linux of course :)

My default proton is experimental and it works perfectly fine out of the box for me.
works with no issues found
gamemoderun %command%
P.S. I also tried it with Wine and worked great as well
Works flawlessly.
works well both natively and through proton
Works as well as natively.
Gamepad controls needs to be enabled in game settings before they will work properly
Built in Gamepad controls are a bit weird

everything seems fine until you want to play :)
Impossible to run the game
Steam version crashed on launch. Found no issues on proton

On i3 it interact strangely with other windows, sometimes I need to move game to another workspace to make it fullscreen
My old report was not correct - that was problems with native version. Proton Experimental runs game flawlessly.

Game crashes (SIGSEGV) on startup
Game crashes with SIGSEGV on startup: https://pastebin.com/9WM9gEgy . Also after "crash" windows is still there, so I have to pkill
game manually to kill process.
When I try to run it with Native runtime it crashes with SIGABRT. Also after few attempts it simply hangs after I press "Play" and window event not shows up.

Works now with Proton as well
Besides the Linux native version, I was able to use Proton with DXVK (DX11) now as well. On the first run the game didn't work, but on the second run I was able to play the game.

I had sound corruption and distorion using the native client. So gave it a try using Proton-6.13-GE-1 and it runs perfectly.
6.13-GE-1 GloriousEggroll

Works only native on Linux but not in Proton
I was able to start the game native on Linux. On Proton it didn't work, it just crashed.
Runs Great!

The game has native Linux-Support - it runs out of the box.