Somewhere in the A/B test slurry there is sometimes a menu item that sorts your news feed chronologically. It really lays bare what a ghost town Facebook is. In my default feed there is all the garbage that you described perfectly, and a burst of content like a friend’s wedding. That little nugget gets replayed over and over so
that it feels like that’s what’s “going on.” Chronologically, it’s old news and no one I’m friends with has posted anything for over a week, just random garbage.
Ironically I feel like the change away from chronological order is what started the slow decline of my feed. I used to see things from people I cared about but didn’t interact with much. Now all I see are things from the same 10 people that I’m closest with, and I don’t care to scroll further.