Yeah, I don't believe that. Even if it did google still has a list of "every" url it can hash and map in order to spy on you.

I'm not sure they'd need to reverse the URL.

Because of how profiling algorithms work, you could just as easily profile someone based on hashes alone. The URL doesn't matter.

Basically this: https://en.wikipedia.org/wiki/Federated_Learning_of_Cohorts

Even better, it’s a partial hash that gets sent.