> All in all, it feels like Facebook thinks I'm an idiot and treats me accordingly.

This is the way of social media algorithms. I suspect it makes sense be cause the majority of users are indeed "idiots", in the sense of doing a poor job managing their subscription feeds and such. I'm sure they have tons of data showing how they improve user retention in aggregate by treating them like idiots.

But those of us willing to build and curate our own experience, we're the edge case not worth accommodating.