The Amiga had the ability to have multiple video screens that you could drag down and even display partially at the same time in different video modes, which was impressive. I don’t recall virtual desktops but I suppose Workbench had that, idk.
Anyway I was just referring to my experience with workspaces/multiple virtual desktops in KDE or whatever.
It’s good if you have sets of apps open for different tasks. I used to have one for programming (text editor/browser/console) and one for graphic editing (gimp/console/image viewer/blender), and one for general browsing/time wasting, all on two monitors. Pretty handy to keep your focus.