I have been a KDE user since KDE 1.x in Red Hat Linux 6.2, back in 2000, and used KDE almost exclusively for my Linux desktop since KDE 2.2. Right now using Plasma 6.4.5.

In all that time, I was quite disappointed to see major distro after major distro (and even Sun Microsystems back in the day) choose GNOME over KDE/Plasma as their default desktops. How could they choose GNOME when KDE/Plasma is/was (in my very subjective opinion) way better? Go figure. Still until today, and with the exception of Steam Desktop, it's disappointing to see that Plasma is not the default/preferred desktop environment in (almost?) all major distros.

So, it's really refreshing to see posts like these. I like when someone finally "gets it" and realizes the advantages and potential Plasma offers.

In case you can't use Plasma, I'd recommend (in no particular order) LXQt, Cinnamon, MATE or XFCe as adequate options. But if you haven't, try Plasma, and customize it to your heart's content. More often than not, you'll end up liking it quite a bit.

I vaguely remember that the shift to gnome was because of fear around QT licensing.