No they don't. Eight out of the Top Ten websites are not owned by Google.
If Chrome became the browser that broke major websites all the time, people would switch really quick.
> Just lookup how they hamfisted their autoplay into the ecosystem despite breaking every website.
It didn't break "every website", because most websites never had any obnoxious autoplaying media to begin with.
Popup Blockers also broke "every website" that had the guts to open pop ups, most of which were not solicited by the user.
In either case, strong user preference was behind these changes. It didn't need some consortium of conflicting interests to standardize acceptable website behavior.
If users didn't matter and it was all about Google's interests, you wouldn't have adblockers in Chrome. You wouldn't be able to watch Youtube flawlessly without ever seeing any ads.
Google can and will do whatever they want and there is no amount of complaining that will actually change their mind. Just lookup how they hamfisted their autoplay into the ecosystem despite breaking every website. YouTube is whitelisted to not need to follow their autoplay guidelines though :)