this seems to apply to all “non-steam” games and a few steam games launched through steam
in desktop mode if i open an app, the res is set to 1920x800 and it fills the whole screen
if i lqunch the same game from gaming mode, set to the same resolution, i get black bars on top bottom and sides of the game
in game menu says game is still 1920x800
very annoying, any ideas?