GIFs can be highly optimised for tiny simple animations, but 99.9% of the GIFs that people actually want to send are not in that category. webm (for example) ca

GIFs can be highly optimised for tiny simple animations, but 99.9% of the GIFs that people actually want to send are not in that category. webm (for example) can handle transparency too, has cross-platform support, and better compression ratios than GIF for anything remotely video-like.