macOS implementation was bad, because I accidentally switched between desktops all the time. It shows all launched apps in the dock from all desktops. If I'm working on my project, I don't want to see that I have Battle.net client launched and 10 unread notifications in Discord guild channel. If I'm clicking on Safari icon, I want to launch new window on current desktop, I don't want to switch to another desktop with some random website.
Anyway the main point of virtual desktops is that they are implemented at OS level. Actual interface is not very important, because if API exists, 3-rd party programs can embrace it. For example Windows 7 had virtual desktops implemented on system level (there wasn't UI to manage them), but API was very limited, for example it wasn't possible to move windows between desktops. Also applications usually weren't aware about those desktops and sometimes were outright buggy (for example you couldn't launch second Firefox window on another desktop).
- No indication of other workspaces existing.
- No indication of what applications are in those other workspaces.
- The keyboard shortcut for walking through desktops requires two hands (and in typical Windows fashion cannot be rebound).
I'm not familiar with macOS' implementation, so if you actually think that it's worse, then I would like to know how.
Also should be said, though, that you can replace the window manager on macOS, which should allow you to get most of the features of an actually good implementation of virtual desktops. I'm not aware of a way to do that on Windows.