I suspect the fediverse is stickier than mainstream social media, since there’s no incentive to be anti-consumer, and anyone can make their own frontend.
It’s only a matter of time until these companies keep making unforced errors and people join us.
I think someone runs a crosspost bot that can copy a subreddit to here. I don’t recall who though. Might be a good solution to the missing technical/niche subreddits on lemmy.