Gnome is way simpler to use than Windows. If you let grandma or a kid with no prior Desktop experience, I’m pretty sure they will find Gnome more intuitive. The problem is that it is too different for a Windows user, so the switching cost is high.
I don't even understand why they thought it would be a good idea. On mobile there is at least the justification that it helps keep the valuable screen estate for "important things" (although anecdotally I've seen how much more my mother and grandmother both struggle with button-less iPhones because they can't remember the gestures). But on the desktop, even on laptops, it is a very weak argument.
For example, how am i supposed to discover how to maximize a window?
Gnome made several decisions toat make it super complex for normal users. Windows have a taskbar. Mac have a dock. KDE have a taskbar.
And I really like Gnome design language, UI. But the UX is awful.