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.
If you have Authorized Fetch turned on (or if you use something like GoToSocial which forces it on) this won’t work (as far as I’m aware anyway) as neither Lemmy nor Kbin support it completely.