Apple already has HEIC codec on their systems, which is half the size of WebP. I'm curious why they're not exposing it to the Web. Is it because the codec is a

Apple already has HEIC codec on their systems, which is half the size of WebP. I'm curious why they're not exposing it to the Web. Is it because the codec is a ball of risky C++ code? Patent issues? Or because it's non-standard, and for once, they don't want to add a non-standard feature? There's also JPEG XL being standardized now, which gives similar compression while also supporting lossless conversion from the classic JPEG. This offers nicer migration path. With other formats conversion from JPEG is lossy, so you get smaller files partly because you lose quality in the process.