As the other person said, Edge is Chrome. This may sound like we’re just being obtuse, but the point is that this ‘standard’ may only be a standard on paper so far.
Google may have (half-)written and implemented the specification, without going the full way in the standardization effort, which is to say, talk to Apple & Mozilla:
whether they actually want to implement it. Even if OP thinks, it’s the coolest feature in the world, it means real implementation+maintenance work for Apple & Mozilla, which they might simply not be able to afford.
if it needs to be specified in a certain way to help Apple & Mozilla implement it. Evidently, Google didn’t specify it in whole from the start either, which may very well reflect on what was easy to implement for them.
As the other person said, Edge is Chrome. This may sound like we’re just being obtuse, but the point is that this ‘standard’ may only be a standard on paper so far.
Google may have (half-)written and implemented the specification, without going the full way in the standardization effort, which is to say, talk to Apple & Mozilla: