This is definitely true for my mom's feed because she watches so many random pet videos.

Mine is like ~1%. I'm actually surprised about how good quality the feed algo has been, and for especially showing small creators and older videos too.

Each person has their own filter-bubble, I guess.

Search engines are definitely worse. DDG shows so much AI shit websites now for specific search queries. Google is almost as bad. I'm having to double quote almost everything because the quality and fuzziness of matching is much worse now. I miss the OR operator and groups parens that were possible way back.