PC Master Race

Yeah, though last I looked, Xfce was still really X11-only, so unless that's changed, I'm assuming that you're running X11. A lot of my unknown here is "how does a Wayland-based system operate under low memory environments", because that

well, and systemd, but I'd bet that systemd is less memory-critical

is probably the largest chunk of the system that got replaced in recent years.

searches

It sounds like it's working in very preliminary form, but they've got a ways to go:

https://wiki.xfce.org/releng/wayland_roadmap

For Xfce 4.20, the plan was to add preliminary support to Wayland to core components without losing X11 support. This doesn't mean that by the next major release an Xfce session on Wayland will offer all existing features, but we hope it will be minimally usable. We also intend to continue refining our applications to work acceptably on Wayland (those that already work or can be made to work with low effort).

For Xfce 4.22, the stabilization work continues. Reaching X11 feature parity is not yet our target.

We are now working on our own Wayland compositor. It is very early, under heavy development, and not usable yet. Please see its FAQ for further information.