@gravecat Oh, a non-obvious getting-started trick, if you're following Mastodon links around, and see something you want to Favourite but it's in the display-ish format and not your own Tweetdeck-like client, you can paste the URL into the Search box to get it to show in your web client, for further use there.
@gravecat oh and watch out for pawoo, it's some big japanese art site that onboarded a ton of people onto Mastodon, but post a lot of lolicon; a lot of instances block it but I'm not sure if main trunk does