As a civilization, we have forgotten how to do search. Maybe that's in large part due to over-reliance on The Google, but in any case, we've collectively chosen to not only replace search with "algorithms" but grossly underpower any remaining shred of search that still exists.
Ask yourself when was the last time you used any search engine anywhere and came away feeling empowered by the tool in front of you. Maybe this is a feeling that few if any young people today understand. Back in the early days of the web, search engines, even the lousiest ones, made the user feel like all the world's information was at their fingertips. If a query returned few relevant matches, it probably meant your query wasn't good. In other words, search was a power tool.
Virtually every form of search engine today, whether it's The Google or a search function on a specific site, is embarrassingly stuck in the past. But it's much worse than that. Not only have there been virtually no meaningful advancements in advanced search features, but the search engines are often not capable of correctly handling basic queries. There are pages I know exist that contain certain verbiage, and my default expectation today is to expect a search engine to not be able to find it. Apparently software developers, or perhaps companies themselves, are so disinterested in search that they won't even use Elasticsearch. Whatever they're doing, they're doing incorrectly. At best, they're doing what was adequate in 2005. By now, search should have become far more advanced. Instead, search engines today fall somewhere between being a mess of algorithmic results plus ads or something barely at the level of a CS student project.
Although I like the Kagi search engine, its primary differentiator from other search engines is its ability to filter out the detritus. In terms of results and advanced search capabilities, it's not necessarily that much better in other regards.