I miss the random non tech centric communities from Reddit. The userbase here, across the fediverse as a whole gravitates towards more tech focused aspects and while that's fine, you miss out on the random topics / subreddits you'd find on Reddit.
(The answer isn't also 'just start that community here', specially I miss randomly getting topics from subjects I wouldn't even search for, but just get surfaced because of the shear amount of content and users Reddit has)
Maybe I'm just weird but I think the tech focus is better.
Like that's where all this started. Kevin Rose wanted a better version of Slashdot, a tech news aggregator, so he created Digg.
And Digg was about tech news for several years before going to a general format, at which point it became trash.
And then Digg's redesign killed the site and everyone flocked to a Digg clone called reddit, even though reddit was a clone of post-shittification Digg, not pre-shittification Digg.
Being tech-focussed really does help. I'd sooner deal with Well Actually neckbeards than the average Facebook user, even if I'm not just interested in tech news.