How to Use Structured Data to Support E-A-T.
@jonsneyers
says about JXL vs others: Very roughly speaking, I'd say avif is better at q<30, jxl and avif are similar at q around 50, and jxl is better at q>60 (significantly better at q>80). "Web quality" is typically q70-90, "Camera quality" is q92-98.