A fun Mastodon thing I don’t think people realise - you can interact with Reddit style services like Lemmy without leaving Mastodon as it’s part of the Fediverse.
Eg I follow the @starfield community by following that user, new posts automatically appear in Mastodon feed, I can upvote by favouriting, and I view and reply to comments in the thread.
I’ve never signed up for Lemmy, here’s me posting from Ivory app via Mastodon.
Shame nothing works the other way around yet. The only option Lemmy seems to give is to DM a mastodon account & even that doesn’t seem to work (at least it didn’t for me).