Probably not a lot of people know this now, but Mastodon's web app started out with "Publish". In 2016 a famous YouTuber jokingly offered to support Mastodon's Patreon forever if I changed the button to say "Toot" instead. Needless to say, this was a really early, and not very informed decision. The first glimpse of attention and financial support. As a non-native speaker I had no idea there was another meaning.
This is a handy little tool to find your faves from the bird site who are now in the Fediverse! Fedified.com is a list of Twitter-verified accounts now on Mastodon. It's updated a few times a day by @DataDrivenMD#TwitterMigration
Fedified — Notable Twitter accounts on the Fediverse
Protecting public figures, journalists, creators, companies, and brands on the fediverse by verifying common ownership of Twitter Verified and Mastodon accounts