I mostly just used Twitter to keep updated on various indie games/artists/authors/content creators. I’d imagine they would go to Threads or Tiktok’s new thing before giving Mastadon a shot, and some of them have.
I don’t want to be a downer; Mastadon would be my favorite Twitter alternative with how it functions, but in its present state Mastadon just doesn’t work for my use case. I think for now I just have to phase Twitter-likes out of my life unless I’m willing to bite the bullet on putting up with meta or 𝕏.