The problem with the Linux desktop isn't usability, it's the lack of corporate control software. Without corporate MDM and antivirus, you'll find it rather annoying to get a native Linux desktop in many companies.

For Windows and MacOS you can throw a few quick bucks over the wall and tick a whole bunch of ISO checkboxes. For Linux, you need more bespoke software customized to your specific needs, and that requires more work. Sure, the mindless checkboxes add nothing to whatever compliance you're actually trying to achieve, but in the end the auditor is coming over with a list of checkboxes that determine whether you pass or not.

I haven't had a Linux system collapse on me for years now thanks to Flatpak and all the other tools that remove the need for scarcely maintained external repositories in my package manager. I find Windows to be an incredible drag to install compared to any other operating system, though. Setup takes forever, updates take even longer, there's a pretty much mandatory cloud login now, and the desktop looks like a KDE distro tweaked to hell (in a bad way).

Gnome's "who needs a start button when there's one on the keyboard" approach may take some getting used to, but Valve's SteamOS shows that if you prevent users from mucking about with the system internals because gary0x136 on Arch Forums said you need to remove all editors but vi, you end up with a pretty stable system.