When people talk about “Google stealing your data” they are referring to non personal data related to things you buy so that advertisers can target their market better, they aren’t like trading secrets and tracking where you go so they can jump out and I dunno, scare you or some shit? No it’s just for as revenue stuff. They aren’t even serving you more ads they are just serving you more accurate ones because those will generate more revenue from advertisers. Nothing is shared with them like your name or address or even your age really (just a general age group)