I was never on Instagram or TikTok, but neither seems to be "social" media as much as a communal fire hose anyway.
I was on Bluesky for a minute, but it was 99.9% people trying to one-up each other with witty or ironic one-liners for clout, with most of the rest being ex-Twitter people trying to keep Twitter combat alive in an arena (blessedly) free of the people who have made Twitter unbearable. I got tired of witnessing a neverending improv open mic while being randomly assaulted by people I agreed with.
So now I'm just living my life, aware of the challenges of the world, but not bathing in them.