One note since I see many people talking about "KDE": the term does not refer to the DE anymore since many years, and instead refers to the community behind it.

One note since I see many people talking about "KDE": the term does not refer to the DE anymore since many years, and instead refers to the community behind it. In fact, the DE is just Plasma, while Applications (like dolphin, ark, etc.) and Frameworks (the underlying libraries) aren't tied to a specific DE.