What is status of AVIF support? #723

There seems to be growing confusion about when, if ever, Edge is going to support AVIF. Would it be possible to add this as a status item please?

E.g., here, XuDong Peng-MSFT writes:

Unfortunately, currently Microsoft Edge does not support avif format files due to design

Well that doesn't make much sense because other Chromium browsers support it on Windows, and Firefox does too.

Elsewhere, people seem to be hallucinating non-existent flags:

• https://stackoverflow.com/questions/75459594/why-doesnt-edge-support-avif-images
• https://www.youtube.com/watch?v=jDrYMlCY2tY
• https://twitter.com/Leopeva64/status/1623387417414606850

Given that AVIF is supported by all other major browsers, could we please have some sort of official word on what's going on with it? Many thanks.

Update: I've got a thread on Mastodon going regarding this.