It depends on what you mean by send. Wayland doesn't have network transparency, there's a bit of a song and dance you have to do to get that working properly. I'm not sure the state of that or of Wayland compositors in general on Mac.
> It depends on what you mean by send.
Currently I can:
$ ssh -X somehost xeyes
> It depends on what you mean by send.
Currently I can:
and get a window on macOS.