It is working with known tweaks so far (installed wine 3.0 directly from store, and set to XP compatibilty trough wine cfg). I am running it with steam proton 4.2-3, mostly playable, only one issue i have: on some parts of the map (eg. the farm and the town on North) the game slows down incredibly, a battle after better to call a comic book instead. I could not make to work of steam FPS counter for more precise data.