Note about caniuse: browsers dragged their feet with jpegxl while avif had the backing of the biggest browser in existence: internet explorer

Apologies if your comment was meant to be a parody as there's a bit of Poe's law around this stuff…

IE never supported AVIF. Edge even shipped AVIF later than Chrome. One of the leaders of JPEG XL worked at Google until relatively recently. A massive amount of JPEG XL development has been done by a team at Google.