Yes. The macOS menu bar is also searchable, which is cool. Unity on Ubuntu also had this back in the day.

Most people haven't experienced "addressable interfaces" like Emacs and don't know what they're missing when they only have visuospatial navigability. I would like to see searching and jumping make bigger impacts in mainstream UX design.

Probably! To quote William Gibson, "the future is already here — it's just not very evenly distributed". I'm sure you can find some of these features all the way back in The Mother of All Demos, the difference now is that they're more common.