I've mentioned several times the problems that we've had with Facebook. I got into detail about it in a blog post titled Facebook has some big problems, and I've mentioned a couple of updates recently about our ongoing issues with them.
What Facebook now offers is not the same as the Facebook we signed up for ten years ago. At that time, what you saw in your newsfeed was what you wanted to see. If I "followed" a page or a group, it's because I was interested in it. Now, Facebooks algorithms only show me what it thinks I should see. Along with hundreds of advertisements.