Support AOMedia Video 1 (AV1)
I'd love to see it. It's a major improvement in compression, and finally the proper royalty-free codec we've been waiting for.
I know Edge users can add support by installing an extension, but telling users "to play this you need to install a codec" makes you sound like a dodgy website trying to install a virus, so the codec *has to* be built-in into Edge or it doesn't count.
HM the Gold Link commented
Chrome intends to ship AOMedia Video 1 format starting from Version 69