Google search is good because it tracks what links people click and knows when they come back to go to a different url on the page. if 99% of people visit the top result for a query, return, then hit the second one, chances are that the top result never answers what the search query asks.
Of all the tracking Google does, this is by far the most justified, and least concerning to me. I'd rather log out and search anonymously, if my concern was being put in a bubble, rather than block this kind of feedback for search result quality. Then, again, I primarily use DuckDuckGo and I wonder if they do anything similar.
https://i.judge.sh/ragged/Derpy/chrome_5j8fWLGX6J.png
They have an info page on it: https://improivng.duckduckgo.com.
Google search might have been good over a decade ago but today it's trash.
IME, its still consistently far and away better than the alternatives. Part of the difference in perception of quality may be that over time it has come to use more personal signals to zero in on relevant results, and the people that complain about how bad it is overlap considerably with those who actively seek to deny those signals to Google.
I am specifically disinterested in existing within an echo chamber.
When I search for a topic, I am looking for information that is most faithful to objective reality. A detailed explanation of the limits of our current understanding, or why my understanding / model is inadequate is orders of magnitude more valuable to me than something that will affirm that I am a smart, special person. Google used to be exceptionally capable of delivering those kinds of results, even if it took some work refining search terms. Over the preceding decade, their effectiveness in this regard has significantly diminished.
[I wouldn't know. I've been using DDG for so long now, I can't remember the last time I used Google search. Maybe I've forgotten how much better G is. Truth is, though, DDG does what I need of it. Rarely come away without the answer I want. So no temptation to use Google. At. All.]
Also Google broke a lot of search qualifiers for stupid reasons, like the '+' when they created Google+.
Now it's absolutely useless for the hard-to-find information that you most need a search engine for. That's not "objectively better" at all.
Is this the intention behind everything at Google - advertising/shopping/consumption? If so, congrats to Google I guess.