Not sure why the WebKit team wasn't sold on Google's VP9 based photo and video codecs, whether it was to see if the claims that they really were unencumbered by patent claims, marketing reasons, or something else entirely. Either way, the three main web rendering engines have reached consensus, webp and webm are codecs you should consider for your image asset pipeline... just as successor AV1 based formats have begun to rear their heads 🤣