I think that growth is not going to happen passively. These comercial platforms are deliberately pushed and advertised and there is always some new content whenever you open the app.

Fediverse, lemmy whatever may have the better model in theory but that is not enough to create buzz or to reach a critical mass of users.

"Hello here is the better model now come here, why aren’t you here? " is not guaranteed to work.

1min later: Dude who talked nonsense for 2h straight calls you again when you are trying to relieve your bladder like a normal person.