Why? I think that's an extraordinary claim.
On the index side I agree, I think they are using other people indexes so far, I don't know if they are thinking about building one themselves.
Same for LLM, but I think that there the problem is even worse.
Here's a list for the curious:
>A look at search engines with their own indexes
https://seirdy.one/posts/2021/03/10/search-engines-with-own-...