It depends very much on the size of the screen. On a small 13” laptop screen? Sure, you’re going to be running apps full-screen a lot of the time. On a big desktop monitor? No, except for games and playing movies, I’ll almost never expand an app to fill the entire screen.

Last time I had to work on just my laptop screen (16”), I actually found Stage Manager pretty useful. On a larger screen, or for more casual use, I do not.