I don't use the main FB app but when I have before it'd constantly show me stuff from pages/people/whatever that I didn't follow. I think it was mostly friends of friends, or stuff friends liked. Have they got rid of all of that now?
i just logged in to my account (i look about once a week) and everything i see that is not an ad is something i actively opted into or was shared by someone i chose to follow/friend.
Thing about Facebook is, it pushes stuff at you. Not stuff you'll like, stuff you'll _engage_ with. Last time I logged in it offered me a weird anti-trans Economist article. Life is too short to invite a robot to irritate you; that's why I don't use Facebook anymore.