If you’re old enough to remember search before and after Google, you remember how good Google search was at the beginning.
Google used links to rank what to show to searchers. In the old web, before Google, every link was, in essence, an endorsement. We linked to what we thought was good, that other people should read.
It was a pristine “state of nature” system.
But the minute Google became dominant in search, everyone started manipulating links and metadata and everything else to get Google to send them more traffic. Links were no longer organic, no longer endorsements, but attempts to manipulate the algo. The more that was true, the more it became necessary to engage in “search engine optimization”, and the more algorithmic search engines sucked. Of course, Google also self-sabotaged, by trying to optimize search results so that Google would make the most money possible.