I think they're referring the Subscribe Pending prompt that some communities give when trying to subscribe.

I've noticed it myself and actually have been wondering the same thing

That is actually really cool

She's a beaut!

It's not everyone's cup of tea, but TikTok! Once the algorithm knows you enough, you can usually get really great music recommendations on your For You Page. And sometimes, you may even get small bands/artists themselves promoting on there.