There have been a ton of articles about the decline of Google's search quality. Just the other day Planet Money released an episode that talked about a longitudinal study of Google search quality: https://www.npr.org/2024/06/13/1197965227/google-search-quality-algorithm-documents-leak
Here are some other examples:
https://future.a16z.com/the-future-of-search-is-boutique/
https://dkb.io/post/google-search-is-dying
https://nypost.com/2022/05/01/google-critics-say-ads-spam-sites-are-killing-search/
https://www.theatlantic.com/ideas/archive/2022/06/google-search-algorithm-internet/661325/
https://freakonomics.com/podcast/is-google-getting-worse/
This is certainly a popular topic in the media, and maybe we can even say the reports of Google's death are greatly exaggerated. An important consideration is the fact that SEO has also gotten a lot more sophisticated, so the number of high quality articles on any particular topic might not be that high.
But my question is, if we accept the premise that 1) Google search is getting worse and 2) Google is responsible for this, what would it take to unseat them?
Maybe because something else replaces the "web" and Google failed to catch up. Much like how Microsoft monopolised desktop, but failed to capture the rising (and now dominant) mobile market.
Maybe AI agents become reliable enough to a point where a vast majority of people looking for information will reach out to ChatGPT instead of searching on the web.
Maybe all of the things we used to do on the web, we instead do in a handful of apps that Google has no access to.
To be honest I'm not going to bet on Google dying off anytime within my lifetime.