I'm still on FB. I tend to share political articles that I find interesting, mainly because I think the majority of my FB friends are like-minded, so it's sort of like virtual kvetching to friends. I know some people think that is not how one should use FB, but I don't think in general people care about what is going on in my boring life. I do post occasional funny anecdotes, or dog photos (everyone loves dog photos) or some "proud mom" news about my kids once in a while.
But I stopped following most of my FB friends (and acquaintances) a long time ago to cut down on the amount of stuff in my feed. I can still go to their news feeds to see what's going on with them, but don't need to see a photo of every cup of coffee they order.
I mainly use it now to follow headline news from various news outlets like BBC, New York Times, Washington Post, Slate, ProPublica and NPR. It's a quick way to check what's going on and what the breaking news is.
I do my very best to ignore the adds, and recently went in to check and see what apps I may have inadvertently added over the years and deleted the ones I didn't want or didn't recognize.