I used to say “Welcome to Lemmy” to new joiners, but nowadays quite a few of them join Piefed instance, having a generic term is easier
You can’t follow Mastodon users from Lemmy or Piefed, using “Fedivers” seems too generic
Previous post on the same topic: https://lemmy.zip/post/33451610
Gemini is both the Google AI and the network protocol, it seems clear which one you’re referring to depending on context