For me mastodon is where I get my cybersecurity and infosec chat from now. HN is my generic techy stuff Reddit replacement, insta for mountain biking and twitter is for lower league Scottish football- it’s very well setup on there.

I’m not sure where threads sat for me, it was all the same folk who I follow on instagram but only posting text, now they post pics on thread and their reels on insta.

I’m not fully up on all the fedoverse stuff but I think that’s just due to a lack of effort so far.