I disabled all kinds of popups and notifications. I still use Jodel which is fun and anonymous (as much as anything these days).
I get mad when reading LinkedIn so I only go there once a week or so. There is nothing noteworthy on linkedin.
I use Reddit for news only - private subreddit.
I guess that forums are the only kind of interaction that interests me.
I just wanted to say that cutting the connection to social media doesn't have to be 100%. Being selective is enough for me.