I’m not a fan of mastodon because it really does feel a lot like other social media sites, I don’t really like any form of advertising, whether it’s intentional or unintentional. People post too much bullshit trying to gain followers. I never cared much for twitter/facebook/instagram anyway.
Lemmy however is a better replacement for Reddit, so far. I remember when Reddit was the replacement and now look at it, a big steaming pile of ads and bots, power tripping admin and moderators, killed 3rd party apps that made the site useable. Hopefully lemmy can remain the same as it is now.