Generally speaking, my approach is "on the internet no one knows you're a dog". I tend to containerize my activity and keep as much PII away from the internet as possible.

I have a few accounts on the fediverse because otherwise the conjunction of regional data, interests and languages would easily identify me. Not that i generally do dumb stuff (but i can easily get flagged if i touch... hot topics, you must pander to certain groups otherwise you're immediately the villain, very free the fediverse), it's just that the internet hasn't quite evolved the way i was expecting it 30 years ago and surveillance capitalism is now a thing, among other factors. I provide as little and as fake information as possible when creating accounts.

As far as the professional sphere goes, all recruiters will ever see is a simple LinkedIn profile. I don't have much time to do pet projects, unfortunately, and certainly wouldn't host them on github - forgejo and codeberg ftw.