To my understanding host based tracking prevention becomes more and more useless as trackers like google allow to run Google Tag Manager and all tracking on the

To my understanding host based tracking prevention becomes more and more useless as trackers like google allow to run Google Tag Manager and all tracking on their clients domains. I was working as a Web Analytics Consultant for years and server-side-GTM is a thing for more than 2 years now. Same I guess will (or already is) be possible for the ad side.