Google and Microsoft do build that in. Google Chrome's default search engine is Google, so the search suggestions come from Google. I am not sure that Google in

Google and Microsoft do build that in. Google Chrome's default search engine is Google, so the search suggestions come from Google. I am not sure that Google includes sponsored results in those suggestions, but at the very least they do harvest your data to advertise to you better in the future. Microsoft does the same thing by making Bing their default search engine. Like with Firefox, you have to change your preferences if you want privacy.