But as I've said repeatedly in the past, the thing that still drives me completely insane are the keyboard shortcuts, their general inconsistency across DE, apps, etc., the layering interaction of how they're intercepted by different parts of the system (so even when I can manually change them to be consistent, I still can't guarantee they'll be interpreted correctly), and their use of the Control key as the primary modifier in both GUI and Terminal applications.
Linux mostly copied Windows in this regard, and it's just as painful as Windows (and then some) for that reason. I would gladly pay $1,000 for a KDE Neon or Fedora Gnome distro that went through the trouble of thoroughly implementing and maintaining a version with fully Mac-like keyboard shortcuts and keyboard shortcut customization facilities.
I'd pay that per user for my team too. We'd make the money back quickly on savings in hardware purchases.