I joined mastodon just before a big twitter exodus because I was getting into open source, via privacy, and quitting commodity social media. I got Lemmy and Pixelfed accounts not long afterwards because I was passionate about the fediverse. I'm only logged in to fediverse social media now. It's not perfect (it's still social media after all) but it has so much more integrity and feels more real, especially pixelfed which is an absolute peach and which I hope never changes!
I mostly enjoy memes and shitposts here on Lemmy but it's also getting pretty good for mutual help and advice in some communities, which I think is the most valuable thing about this format of social media.