Honestly the biggest issue is all the garbage websites using SEO to try to be at the top of the results without having actual meaningful content.
It seems like whenever I search for a problem, a bunch of websites come up with pages dedicated to that exact issue, but all of fixes are generic and don't actually help. And that whole website will be filled with pages like that, pages that claim to have solutions for specific problems but lack any content of substance. Add in paywalls to access sites, that lawsuit to have google remove the "view image button" from image results, and websites like Pinterest that require an account before you can view anything. People were relying on content from websites like reddit to get actual real answers to searches, and now reddit is looking at getting itself removed from google search as well.
I don't think it's that Google is specifically getting worse, but rather that the internet is becoming an increasingly unhelpful place where everyone is competing to sell you answers and drive clicks.