


Flawless
I haven't installed any DLC, so I can't speak for that
Did not crash, but occasianlly the game was minimized. Can be resumed without any issues further.
Never opened keyboard, had to manually open it each time.
This game should IMHO not be listed as natively supporting Linux
This game claims to natively support Linux. The game itself does this without any issues.
Out of the 4 DLCs only 2 ("Extremism" and "Clones and Drones") claim to natively support Linux. Out of these 0 actually do. All 4 DLC install "successfully" install without any (apparent) issues. In-game however, only 1 ("Electioneering") of them actually works. Oddly enough, the one that works claims to only support Windows and macOS natively.
I have tried running it with Proton Experimental, which seems to fix the problems with the DLCs, however it causes all menu texts to entirely disappear, which makes the game unplayable.
TL;DR:
If you want to…
…only play the base game and the "Electioneering" DLC: Go ahead, it works fine.
…play with the other DLCs: Doesn't work natively or with Proton Experimental.