Does anybody have a good writeup/tutorial on doing similar things with Wayland? From my limited knowledge that might be with RDP instead, but there hasn't been anything more distilled as far as I know?

I've also done xpra in docker before; that's always felt as hacky as it sounds though.

I don't use it much, but I've glued together sway+wayvnc+novnc in a container and it worked fine (exposing both raw VNC and the webified novnc interface).