For most of my scrolling and feed I use lemmy. I have discord for friends and workmates. Reddit I never comment, scroll, or even login to, but some extremely specific searches will still have some usable info on Reddit, especially for work (IT, mostly non Linux environments) or for very niche subjects.

I don’t use other forms of social media, unless you count random youtube videos. Though I don’t go through that using the algorithm much either, unless it recommends videos from the same 8 or so creators I’ll let it, or it’s short animal videos.