Context: Even though Chromium has native support for AVIF, a very nice image format, Microsoft goes out of their way to remove it from Edge, which is a chromium fork. Jpeg XL (JXL) (not to be confused with Jpeg (JPG) or Jpeg 2000 (jpg2k) ) is another nice image format, which, IIRC, is only supported in Firefox.
Isnt it Apple who was pushing jpegxl?
JPEG XL has gone through waxing and waning support from each of the major browsers, but Safari is the only one to support it by default.