Okay, under X11 I can use `ctrl-alt-Fn` key combo to jump to another virtual terminal, and then use `alt-Fn` to jump from one virtual terminal to another. X11 is running on one of these, so it's trivial to get back to X.
Under #wayland, this work to get from wayland to another virtual terminal, but I have yet to successfully get *back* to wayland. Does this actually work?