Have narrowed down my social interactions online, basically, to Hubzilla.
Posts on my/our sites get posted automatically to Twitter and FB, but I've about abandoned those, plus some open-source options as well. I don't even have the Twitter cross-post plugin from Hubzilla set to automatic anymore.
I was using Muut, but speaking to the air. Have set my blog page with Muut software embedded as private, just to get it out of the way for now.
Known allows me to post to the first two above without going there, and especially to groups and pages on FB, so I've been doing that. Another step away from seeing any of it.
Still in a couple of yahoo groups. I do post some links there, as allowed.