Thierry de Coulon composed on 2024-06-06 21:51 (UTC+0200):
I use a Lenovo X390,
What graphics chip(s) in yours?
MX-Linux 21.3, with one user using xfce (the "original" DE)
What doc(s) establish that? It could depend on how original is defined. If going by available official 1.0 release, then it seems clear that it is. If it's defined by initial downloadable pre-alpha for looksee, then it's not clear based on the looking I did. If defined by project start, then either it or KDE could be the title holder. All I've found for project start dates are "late 1996" for both. I was quite surprised to learn "original" release of Gnome wasn't until after both, in 1999.
(rest of possible reply pending GPU answer)