>>716189691
The popular ones (aka the ones anybody knows [aka Hololive]) aren't really streamers but singers and artists. Hololive in general only considers a girl a "streamer" until their first year is done, since making 3D models is expensive and nobody wants to invest in someone who'll just leave in less than a year.
Though it's not hyperbole to say there are over 9500 known vtubers out there so they're basically just streamers for 99.9% of the time.