I think we will see the pendulum swing back. Yahoo lost to google because they were a manually curated search engine and could not keep up with google indexing and search. Now that all search is SEO gamed garbagebwe are going to see a new curated search engine rise in market share again
That’s not why Yahoo lost. They switched CEOs and corporate direction / business models more than once a year on average toward the end.
Also, during the collapse of yahoo, it was a poorly kept secret that google had already mostly abandoned page rank, and had large manual curation teams.
To add insult to injury, in unbranded head to head tests, Yahoo search had better search result quality than google for many years before it was sold to Microsoft.