And even if an average user gets things installed and running, they're going to run into graphical issues and lack of polish that pretty much every Linux DE and application has. Stuff like dialog boxes opening up that are too big to fit on a smaller-resolution screen; inconsistent use of widgets, fonts, and icons; help strings being misspelled or completely missing; applications that look wildly different from each other just because they use different GUI frameworks; etc.

Linux "just works" in the loosest sense possible, and I say this as someone who has been using Linux for many years. It's certainly much better than it used to be in the early 2000s, but it continues to lack the design polish and cohesion of Windows and macOS, and that makes it rather off-putting for an average person to use.