Note Xfce 1 and 2 aren’t listed here, because apparently there was no distribution using them as the default? If you know any, please post here, I’m curious. According to https://en.wikipedia.org/wiki/Xfce the first version came out 1997 and started as a Linux version of the (then) proprietary Common Desktop Environment (CDE) from UNIX. So original Xfce predates KDE and GNOME about a year or so. Interesting fact.
Note Xfce 1 and 2 aren’t listed here, because apparently there was no distribution using them as the default? If you know any, please post here, I’m curious. According to https://en.wikipedia.org/wiki/Xfce the first version came out 1997 and started as a Linux version of the (then) proprietary Common Desktop Environment (CDE) from UNIX. So original Xfce predates KDE and GNOME about a year or so. Interesting fact.