Plasma 6 is nearly two years old, and is totally fine in my experience. The transition was more like 5.x to 5.y. The biggest change is Wayland by default (X11

Plasma 6 is nearly two years old, and is totally fine in my experience. The transition was more like 5.x to 5.y. The biggest change is Wayland by default (X11 is currently still available, so might be worth a try). It sounds like your problem may be with SDDM (the login screen program) rather than Plasma itself. You could try an alternative: https://alternativeto.net/software/sddm/ https://alternativeto.net/software/sddm/