[jamesbelchamber]

You might be thinking of the second "Hangouts", whereas what I'm referring to was apparently "Google+ Hangouts" and was the original. You could get 25 people on there, and for a bigger audience you could go "on Air" (which streamed the Hangout). Looks very similar to Zoom (in fact I suspect Zoom was heavily inspired by it) and I remember using it (and it's descents) before COVID and the rise of Zoom.

This video demonstrates an early version of it (from 2011!): https://youtu.be/KLf9jzFvkTA