Well, it was Tesla insiders saying that about Tesla Robotaxis, not waymos.

https://thenextweb.com/news/tesla-insiders-dont-trust-fsd-self-driving-reuters

It let’s you have one search website where you have it pull results from all other search engines (that you want) and then it can rank results based on where things rank on the various engines.

Tl;dr self hosted search proxy, with some advanced features