Aside from Facebook (which I was never on), I'm still on Mastodon, but have let Twitter go fallow due its moribund nature.

I deleted LinkedIn (after the MSFT acquisition) 10 years ago, due to the business model change. Even prior to that, it was getting too spammy anyways.

I keep a token Instagram just for viewing the rare family/friend that insists I see something from a trip, but I never post there.