KDE Plasma
Powerful, customizable desktop
KDE Plasma is a flexible desktop environment with a traditional layout and lots of options to tweak. It is the default on many distros and appeals to users who want control over how their desktop looks and behaves.
KDE Plasma offers a familiar taskbar-and-panel layout with rich customization. You can change themes, widgets, and behavior without touching config files. It is feature-rich but can feel busy if you prefer a minimal setup.
Distros that offer KDE Plasma
These distributions ship or support this desktop (as default or an option).