This is a minor thing, not worth a quibble.It supports it now. But claims of “Major browsers supporting it for years” are definitely not entirely the case.
With a modest market share of 0.4 %, the format is still new. It is getting favorable attention; CDNs like Cloudflare are adopting it. I’ve converted a few WordPress sites to AVIF, and they run smoothly on both Windows desktops and iOS devices. We need to give the format a chance before it can take off. Otherwise, it’s a vicious circle.I haven’t seen many uses of AVIF in the wild to be honest, but when I have seen them, I have more trouble with them on iOS then I ever do on desktop.