My understanding is that it uses your browser history to profile you, then when you visit a website with ads it sends your profile to Google Ads service so they can decide what kind of ads it shows you.
So your browser history supposedly doesn’t leave your browser, but also it doesn’t need to because they get the information they want regardless. They’re just changing where the processing happens.
LOL that is just what they want you to think.
My understanding is that it uses your browser history to profile you, then when you visit a website with ads it sends your profile to Google Ads service so they can decide what kind of ads it shows you.
So your browser history supposedly doesn’t leave your browser, but also it doesn’t need to because they get the information they want regardless. They’re just changing where the processing happens.