... I'm not sure I've been anywhere where they don't do that in the last few years? It's inherently a little unreliable (in particular, it's hard to know ahead of time what dwell time at a stop will be, or if the bus will even need to stop at the stop), but it's fairly standard these days.

This thing is a good interface to them: https://en.wikipedia.org/wiki/Transit_(app)

In many countries bus stops also have electronic signs indicating when the next buses are coming. Here's a thing from 15 years ago about their introduction in Dublin, which is not exactly world-leading, transport-wise: https://www.archiseek.com/discussion/topic/rtpi-coming-to-a-...