Microsoft just did whatever they wanted with the web "platform", and so will Google.
In Microsoft's case what they wanted was nothing. They weren't a web business, saw it as a threat to their platform leverage, and so just left it abandoned and stagnant for years.
Google is simultaneously better and worse: they won't leave it stagnant because the web is their platform, but on the other hand they have a lot more to gain by abusing control of it.
We already have a number of Chromium based browsers that go against some of Google's most fundamental interests (e.g Brave).
These sorts of arguments probably help cement Google’s power. By giving the guise that the open source part of the equation can be the key to usurping Google’s power. Instead of it mostly being the other way around.
It would not be surprising if Google loves these tiny changes from Chrome and Android. So the discussions and sentiment never get close to how bad it got for IE or other monopolies and dangers of power.