Using Stage Manager and Spaces Together
Because you’ve already chosen Stage Manager in your first or regular Space, it’s on for all of them. And when you turn it off, you are turning it off for all of them.
So what you end up with is a Mac desktop that has you focusing on just the apps and documents you need for your current task. Most other items you use are there in the Stage Manager column of icons and so are a click away.
And an entire new set of apps and documents is a swipe away in a second Space.