[IX-103]

Google doesn't control the w3c. And Google Chrome is severely limited in what they can push due to threatened/actual anti-trust litigation. Their whole "privacy sandbox" thing is being done under the scrutiny of quite a few governments in addition to practically every digital advertising association on earth.

[recursive]

True. But they can implement non-standard things. And they're not compelled to implement the standards. And sometimes they don't.