I've used every major DE and WM over the last few years, but KDE has provided me the smoothest, most stress-free experience of them all, which is why I sacrificed the leanness of a WM+hacks kind of system to stick to the latest Plasma.
KDE is my favorite DE and the development effort going in it is insane.
Good job team!
been using kde plasma since 5.12 on my laptop which i use for like 14 hours a day. the improvements have been phenomenal over these times. good job everyone