If you search this forum for "Change DE" (or similar search term), you will find many threads and advice on the matter, including this one: [HOW TO] Install KDE (plasma), GNOME, XFCE, Cinnamon, MATE, Budgie, LXQt, LXDE and UKUI Dekstop Environments
If you search this forum for "Change DE" (or similar search term), you will find many threads and advice on the matter, including this one: [HOW TO] Install KDE (plasma), GNOME, XFCE, Cinnamon, MATE, Budgie, LXQt, LXDE and UKUI Dekstop Environments