> I swear if MS eventually removes the don't group fallback
  > I'm finally ditching Win for KDE and never coming back.

Exactly the switch that I did - get this - in 2005. And I never went back. Even in multiple software development roles, having to interact with Word- and Excel- using colleagues, and having "UX experts" sending me Photoshop files, KDE has pulled me through.

I have been using KDE on-and-off since 2001 before switching fully in 2005, and in all that time KDE has had a single disruptive UI switch, going from KDE 3 to KDE 4. The upgrade to KDE 5 went all but unnoticed.