I don't understand Mastodon yet...

@vielbein Take your time, it's not a competition. You can always ask the community for info.

@trinsec Toots in qoto...are they visible in every server? Or how is this thing organized? I was here some time ago, but I decided to revive my accounts due to the nasty ugly place in which twitter has become.

@vielbein Qoto is federated with many servers, yes. Anything you post publicly will be federated with them. If you check the Federated timeline, you can see posts from people from all over the Fediverse.