This will hurt the ad-tech businesses and websites/publishers who rely on third-party ads/targeting much more than it will hurt Google (and Facebook). Still, G

This will hurt the ad-tech businesses and websites/publishers who rely on third-party ads/targeting much more than it will hurt Google (and Facebook). Still, Google's revenue on third-party site ads was $6.4bn in Q3 of 2019 out of the $40.5bn in total revenue so it could be felt a bit there too. I fear that it all will move to first-party tracking though which will be so much more difficult to block and so much more dangerous in terms of security.