I do.

Actually, it just works flawlessly (for me).
I start it with wine, and it runs out of the box.

Never tried running multiplayer, but according to the proton-database, it runs fine too.

I just recently installed it using Lutris. I did not need to make any special tweaks; it worked fine out of the box. Works quite well with NVIDIA proprietary drivers.

Yep. A fresh Manajro, Wine 6.8, (w/o consideration I also installed wine-gecko, wine-mono, winetricks) nvidia propr drivers, running out-of-the-box with graphics set to Ultra.
I'm using the old WIndows savegame.
Smooth. :)
(EDIT: Sry for typing faster than thinking - don't know whether mono is needed, but I didn't need winetricks, or gecko).

I play it on Linux till the very beginning of this game (version 1.03 I think).

It runs out of the box on wine.

(I use PlayOnLinux for management of wine prefixes, but it is not required.)

The game used to use OpenGL and now uses Vulcan API for graphics AFAIK, so it really works naturally very well.


EDIT: You won't need Mono.

Interesting. I’ve been waiting for a Linux version for years, but at this point I am not hopeful. Maybe this is the way to go. If it runs so well, one has to wonder why the publisher doesn’t just polish it up a little and make an official Linux version.