This is how @Google can use its #GoogleChrome #monopoly to decide if Third-party cookies (or other web technologies) remain or not as part of the web platform.
The fact that their browser dominance is so large, any decision they make ends up being platform wide and not just a quirk of their one browser.
They did not find a good alternative to third party cookies as the community corrrectly identified the self serving convenience in all their porposals, so now they sweet talk that "users will decide" and perpetuate online tracking.