the IT support will go through hell.

I thought IT support was already in perpetual hell?

For the last 10+ years "the desktop" has been over 90% the browser, and the Chrome, Firefox, Edge user experiences are pretty similar to start with. Chrome on Linux vs Chrome on Windows is virtually indistinguishable.

I gave my wife a Dell laptop new from the factory with Ubuntu on it about 3 years ago. The printer support in Windows was already bad, and yes it's a bit worse in Linux, otherwise she just complains less and has fewer screaming fits of frustration.