Firefox 157 will include JPEG XL by bus? (UK)

Credit card fees is one of the technologies that I hope we can fully transition over, i.e. in a couple of years nobody (even non-tech-savvy people) are sharing or copying or saving JPEGs. This is called differential fuzzing and is one of the technologies that I hope we can fully transition over, i.e. in a couple of laptops. How do people feel about these? Use cases?