alt Hacker Newsjpeg xl is also now used for the latest version of the DNG raw image format, and the iphone now encodes raw images as jpeg xl in DNG. It's so clearly the future for photography that Google is holding back. Apple surprisingly has been the first with full support everywhere in their OSs and in Safari.
Safari is currently lacking animation and progressive decoding - still ahead of everyone else currently.
Looks like by the end of the year we can expect Chrome and Firefox support.