Wait until Google implements something and shoves it down everyones throat in Chrome and then has all the Google fanboys claiming that its the best thing since sliced bread and thus should get implemented by every other browser just because Google did it?

That's how we ended up in the situation where Google shipped U2F, sites implemented their implementation and then when the standard WebAuthN was built it was not compatible so sites had to be updated to be standards compliant, and it took a while to do so.

Or when Google added WebP without clear consensus. Or when they added FLoC or Topics API, or whatever else they have cooked up. Or things like WebUSB, WebMIDI and others?

There's a glut of Chrome only sites out there, and it continues to grow as web developers test just on Chrome but not the other browser engines. It's turning into the next IE 6, I remember the time there were a lot of "Made for IE 6" logos and graphics on sites and they did not render well or at all in Netscape.