Tried KDE a few months back for a short time, was surprised that KDE's footprint (in mb of space on disk, not ram) was not that much heavier than LXQT. The desktop experience seemed polished, though for me it has far too much gimmickery (in settings), and at this point I'm quite used to Ubuntu's Gnome. But happy for a healthy ecosystem. When I got into Linux (back in ~2008 probably?), I remember the choice with regards to full DEs was KDE vs Gnome vs XFCE vs LXDE ; there are more today, but I would hate to see one of them gone for good, and wish all of them well. Good to read that KDE seems healthy.