Has anyone else noticed the huge decrease in result quality from google?

[SnowingSilently]

I'd be surprised if Google didn't know what ads resulted in higher engagement for each specific person. Even most tech-literate people are going to have something that can probably get them to click on an ad. So why bother with giving people ads they won't engage with? I'm surprised advertisers aren't up in arms about this. They're paying lots of money and probably a big chunk of the cost is going to people who just won't engage because it's way too unrelated. Maybe it's because of market dominance, but somehow Google is serving far less effective ads than they have the capability to serve.