This is not that far from the way macOS does it, where apps can go full-screen as if they were single-app virtual desktops. You can flick between the apps, but

This is not that far from the way macOS does it, where apps can go full-screen as if they were single-app virtual desktops. You can flick between the apps, but the useless situation where apps are half-off the screen, like the wretched Metro interface on Windows, does not occur.