I recently installed Fedora with KDE Plasma on a new computer and I can't say I feel the same way. The UI is still clunky (eg the file explorer is clunky) and I'm running into minor bugs pretty regularly. Windows will be sized incorrectly after a restore sometimes (failing to take into account the bar I added at the top), switching between multiple windows of the same program and a separate program seems non-deterministic, random UI components occasionally crash and restart.

I don't want to be negative for the sake of it but I constantly read these really positive comments about Linux on the desktop (in general or in specifics) and it gave me a false impression of what to expect. Not the first time I've fallen for this either over the years.