The sad thing is that Windows has a great keyboard UI and it's superbly accessible for people with visual and motor disabilities.
Who have reduced earning opportunities because they are disabled, so FOSS should be great for them, but it isn't, because the nerds don't know CUA and don't know the keyboard UI. They spend their time mastering a couple of ancient apps like Vi and Emacs and ignore the fiery furnace of UI R&D that followed for the next 20Y after those early efforts.
Learn Windows' keyboard UI and you can drive the whole OS and all its apps with the speed of a genius Vim user with 20 years' practice. It makes Emacs look like a wet paper pad and a burned stick compared to a Moleskine notebook and a top quality fountain pen.
Xfce comes close and implements maybe 75% of the UI but once you are in an app all bets are off.