damn being decentralized is complicated
@eschenbach welcome here!
Let is know if there are some things you'd like to do but can't find how to ;)
There are a few Mastodon/Fediverse beginner's guides around the net to help you get started (or refresh your memories in your case I guess).
Otherwise @feditips and @FediFollows provide invaluable information and nice accounts to follow!
Fediscience is the social network for scientists.