"Linux has been somewhat different in that what the
user sees as a desktop isn’t tied that tightly to the
underlying operating system and is changeable, often drastically.
That said the major desktops in Linux and the FOSS world in general
have kept to the same way of presenting and interacting with the
desktop as what came before. It didn’t matter if your desktop
of choice was KDE, GNOME, XFCE, Enlightenment or any of the others
that are available. Fundamentally they all look and work the same