[cptskippy]

> outside of those shown to everyone using other OS/Browser to access the same sites?

That isn't a fair comparison because each company primarily advertises from their monopoly position. Google does not have a monopoly position on platforms, only services. Microsoft is the opposite.

If you flip it around, Microsoft shows you one advert if you haven't turned them off entirely. Where as Google shows you an advert every time you visit every service they have and you can't turn it off.