Mostly Windows games through Proton/Wine expecting to be able to take full control of the screen, and then having a panic attack when not allowed to.
As far as programs wanting to draw many floating windows, that's happened with Krita/Inkscape more than games, games just... didn't play nice. I'd get crashes when changing workspaces, when launching a game, so on. That was on i3 itself as well, I didn't switch to sway until after I stopped trying to enforce tiling on everything I do (just most things :P )
Mostly Windows games through Proton/Wine expecting to be able to take full control of the screen, and then having a panic attack when not allowed to.
As far as programs wanting to draw many floating windows, that's happened with Krita/Inkscape more than games, games just... didn't play nice. I'd get crashes when changing workspaces, when launching a game, so on. That was on i3 itself as well, I didn't switch to sway until after I stopped trying to enforce tiling on everything I do (just most things :P )