What I was missing on KDE was a way to switch between programs without going through a bazillion windows. At one point I had five Firefox windows open, plus four file managers, and getting to GIMP ended up requiring a lot of keypresses: Firefox -> Firefox -> File manager -> Firefox -> File manager -> GIMP. I would have much preferred just Firefox -> File Manager -> GIMP. Is there a way to switch directly between programs and not between individual windows until I happen to land upon a window belonging to the program I actually need and can then Alt+Tilde to the correct program?
(Also, I think "Tilde" here does not really mean "AltGr+^ followed by space", but instead some other button; probably the one overneath Tab?)