Yesterday #UnityOfCommand2 received an update on the beta branch fixing full screen on #Linux.
Also #SteamDeck support arrived. Not bad for a 6 years old game. Great support from the developers.
https://steamcommunity.com/app/809230/discussions/0/601916800388836586/

Steam Deck - Native Linux version testing :: Unity of Command II General Discussions
Hi, we've just uploaded a native linux version (for the Steam Deck) into the testing branch. Here is how to switch to the "beta" (testing branch): https://steamcommunity.com/app/809230/discussions/2/3003297945133220808/ Once you're on the "beta" branch, check the following: Properties -> Compatibility -> Force the use of a specific Steam Play compatibility tool In the same screen, select: Steam Linux Runtime 3.0 (sniper) Cheers!