I didn’t like Stage Manager when it debuted. But in Tahoe, I’ve switched to using it. It makes me much more intentional and focused. It still has the problem that if I do need to use two or more apps side-by-side, the interface to bring them together is clunky… and there appears to be no interface at all for separating them again outside of closing the apps and starting over (please tell me if I’ve missed something!. But I like the fact that I have a single app on screen; that I can see my beautiful wallpaper around it; and I’m totally zoomed in on what I’m doing in that app without any distraction.