It's their algo getting worse. They have pushed search results below the fold and filled the whole top part of the page up with ads. They are optimizing for engagement, you searching repeatedly trying to find the right keywords/phrase is better for them than you actually finding what you are after.

There are many search engines that don't have an issue with the internet being "competitive and polluted". So you want me to believe that the people (Google) with the most experience and knowledge about search just can't handle it. While it seemingly is no issue for most of the upstarts? That's just not believable.

That is like computer viruses, the biggest vendors get the most attacks targeted at them, so using a less well known OS makes you safer even though the big vendors spends way more on safety.