I agree. It has gotten noticeably worse (for me) every month for several months now, possibly years. The algorithm picks such rubbish for my timeline I'd probably rather see ads.
It's like how more and more people are "cord cutting" their cable TV. Some keep it because one or two features (e.g. live sports) are still worth it to them, but more and more people are finding alternate ways to achieve the things they really want without feeling like they've gone for a swim in a cesspool to get there.