you'll find that with 3440x1440 resolution the train panel on the right bottom isn't usable as the mouse is constrained to an invisible 4:3 box... basically 21:9 breaks the game within 5 minutes of starting the campaign. this has been an issue for years apparently! someone from the devs maybe consider a fix?!
I just can't deal with all that forced low level sjw bs. XCOM 1 was a great game but here you can sense the forced diversity from the first minute. From the story to the carefully mixed characters it feels very different from the previous games.