On the one hand, you have Safari whom has a parent company that isn't interested in making it have useful feature parity with the others because it'll then allow escape from their gravy train app store (fully working PWA's, non-compete with rendering engines in iOS). Their lack of keeping up is starting to look a bit like IE6 days.
And on the other, you have Chrome whom has a parent company that claims it wants to improve privacy (FLoC), but to me it is more of a "pulling the ladder up on everyone else" because they have so many other methods to track you (DNS, GA, Android, etc.) that limiting everyone would be disingenuous. Pushing AMP is another example of bullying behavior.