KDE has improved a lot in recent years, but yes I would agree that it still has plenty of rough edges and little unexpected (as in slightly jarring) differences in behavior from major commercial desktops.

I still prefer it over the bloated pile of upsells that Windows has become, but I think there’s still space in the Linux desktop world for a legally-distinct clone of Windows (sans the bad parts). KDE isn’t that, it’s its own thing and is best fit for long time Linux veterans.