Looks like JPEG XL is BACK ON THE MENU BAYBEE!!
Not really news I guess, you already have JXL in some form in current Firefox but YIPEE etc
EDIT: I have become the JPEG-XL joker. When I make the news, the https://jpegxl.info/ url will be in my manifesto.
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: