>>46675387Ironmouse was around since a month before Sora even, that is true. But her style is closer to what's become a "twitch vtuber school" sort of. A lot of zatsudan (i don't think her Just Chatting is even named like that), chat interaction, react content, big random collabs, etc. The average twitch vtuber is basically a fleshtuber streamer in behavior, just with an avatar. However Ironmouse has a bit more kayfabe and is less lewd than the average twitch vtuber.
Shondo is clearly from the "hololive vtubing school" so to speak. Understands parasocial, big kayfabe, no males, no react content etc. Same with Nina Saotome or Kitanya since most of those indie vtubers were inspired by early hololive.
Most twitch-like vtubers come from a different background, normally either artists, former VRChat content creators, or flesh streamers turned vtubers.
The most uncommon thing is a "nijiJP-like" vtuber, I can only think of Tenma (phase) or maybe Mocca. And I don't think there's a unique "nijiEN-like" style, other than appealing to twitter.