deGoogle

You might not understand how Google handles data (of unique users or other internet info). Their core businesses model is based on exactly that - they read & record your private data & model ads based on it.

They won't just scan your nudes, but all pics (not that nudes don't contain useful data for Google).

Maybe I'll pay Google money to show ads for my capsaicin-based talcum alternative only to people with smooth buttholes. And as I do so (for a modest amount of money per potential client) Amazon will offer you specifically my Chilly lube.

(And the "local" thing/claim is ofc bs, it can just mean they use your CPU time instead of theirs, but still get the same computed data at the end.)