Still figuring it all out myself. Idk how to cross post and Idk where the post went, but here is a link to a wiki explaining a bunch of things about the fediverse: https://joinfediverse.wiki/Main_Page

Edit: also I'm using Jerboa and am liking it so far, it's still a little buggy and not quite as QoL as Sync for Reddit was, but there is potential especially if lemmy/kbin/fediverse gets bigger and bigger from all the redditor migration.