Mine is that the useState hook is an actual plague on the entire React ecosystem. Regardless of your opinions of React, if you wanna use something then use it right.
that it's impossible for a competing browser to emerge outside of Chrome
To offer what? Several browsers come to mind which have offered different ways to serve up the interface, but it's actually great that the rendering engine is more or less the same. "Best viewed with Netscape" was not an ideal time.
Firefox keeps championing complaining that there should be more competition through different rending engines, then refuses to make a case for why having multiple rendering engines is a good thing. It's not like they are constantly going to W3C proposing new protocols or new ideas. Hell, I thought JXL was going to be the next battleground but they followed Google and dropped it. And then they drag their heels browser support for WebMIDI?
I do not doubt that Google has been corrupted by power. Mainfest3 or the end of 3rd party cookies was not done out of kindness or a concern for privacy. But we did get QUIC. HTML5 Video actually happened. And the way Google gets distracted chasing novelties only to shut them down three years later means they will destoy themselves in the end.