

Consistent flickering of cards and verbs during the game, and some flickering on the main menu.
Flickering and graphical issues with cards not moving properly, and verbs flickering/vanishing temporarily
Resolved these issues by using Proton 9.0-4 as others have recommended.

While on native (Scout), some cards would flicker/disappear every few seconds. Similar graphical glitches on the main menu as well. Switching to Proton 9.0-4 resolved it.
Native (steam runtime)
No issues at all.

I was actually able to upload an update to a steam workshop mod from linux, which I wasn't expecting given my experiences with other games.
Works perfectly OOTB. No modification needed.
Personally, if a game advertises Steam Workshop support, I would expect it to be functional.
Zooming is reversed in the native version.
Workshop mods are broken in the native version. Some of them partially load in, but are buggy. Others do not load at all.
Lowered refresh rate to 40.
Increased UI scaling to 125% and enabled "Accessible Card Text" option.

used : gamemoderun %command% Just install and play. It's that easy enough.
Works perfect

Works great with DXVK on Proton.