As a radiology software developer: please please let JPEG XL become a thing. I sincerely hope this might make Chrome change its mind. JPEG XL is a game changer for 16 bit lossless images. The technical landscape for these kinds of images today is barren.
I take this to suggest that Chrome actively decided against implementing JPEG XL? Did they consider supporting it and reject support for it, or has it simply not been prioritized, but still might be prioritized one day?
If the decision was intentional: did they state a reason why?