GNUStep/WindowMaker are too "ugly" and many people use Linux purely out of being gaga at the beautiful window borders. Just look at any recent YouTube video about Linux, it'll likely be about how much better (KDE|Gnome|etc.) LOOK than Windows 11 (usability? That's that?)
To be honest, Gnome is a lot more usable than Windows in my experience. Most of the software I expect to be provided by the OS simply are better under Gnome: file browser, image viewer, terminal, windows and desktop manager (it's kind of shocking how the windows implementation of exposé is so poor).
Sadly, I can run neither Excel nor PowerPoint under Gnome. So I'm stuck with windows.
Gnome is in fact great, and has great usability. But my point was, for many Linux users (perhaps the most vocal), care about GUI looks over GUI usability. So GNUStep/WindowMaker are simply too "ugly" (although I think the experience of using them is superior to Gnome).
