When it comes to animations, is there much of a reason to use avif over webm? I suppose an avif fits into CSS and <img> without further code changes, but that's about it as far as I can think.
Which is HUGE since it allows you to embed them wherever you can embed images. I'm still mad that browser vendors didn't just allow silent looping videos in <img> tags instead of giving us these animated image formats with weirdly gimped non-keyframe compression.