Total KDE fan and that's all I run at home. It's an interesting study also in desktop environment and software written in C++ and just how hard it is to get something that works for most people. Mistakes, corrections, building the basic blocks like Qt in the early days and keeping a bunch of people with differing cultures / tastes / backgrounds/needs motivated to make it better every day - fascinating achievement.

Thank you KDE folks - I contribute in terms of bug reports and attempts at fixes sometimes but this time I am signing up for a monthly donation - I encourage people to do what they can to keep a good thing going! https://kde.org/donate/