Like you say, they could target different messages for different geographical areas. Similar to how in the election last year Dearborn, MI (highly middle eastern) got different messaging from both Trump and Kamala wrt Isreal/Palistine compared to the rest of the country on traditional ads.

They can target any age range or demographics, any interests.

We had Uber hiding things from LEO almost a decade ago via geofencing and other tricks, I’m sure it’s a bit more sophisticated now.

You keep bringing Meta/Google into this. I don’t care if they do the same things. I mean, I wouldn’t like it either, but we have solutions available to us. We can pass laws or go to court and handle it internally. A foreign nation is not bound by that.