Hello everyone! I've joined an instance of mastodon and when i search other people acc on the fediverse I usually get !this. This doesn´t happen in the main mastodon.social. Anyone knows why is that? or how can it get solved. Thanks!

Hello! As all of you know there's been a recent migration of new users to places like this (me included). I'm thrilled about learning how to use these site and others alike, but I'm having trouble understading how it works. Is there a dumb down video about how the sites on the fediverse work and interact with each other? like mastodon, pixelfed, lemmy, etc. Sorry if there's an obvious answer, really knew in these. Ty!