Although often classed as light-weight, Xfce qualifies as a medium weight amongst the Linux front ends. It's heavier than, say, LXDE or Window Maker but it uses less resources than KDE or Gnome.
There’s a new Linux distribution for smartphones that’s the first I’m aware of to be based on the Xfce desktop environment, but while the first pre-release builds of ExpidusOS for the PinePhone are ...