GIF is a legacy format and it is absolutely necessary. Browser support for APNG is surprisingly good, but that's not the whole story. APNG isn't supported almos

GIF is a legacy format and it is absolutely necessary. Browser support for APNG is surprisingly good, but that's not the whole story. APNG isn't supported almost anywhere else on the stack. I don't think any chat platform currently out there will play APNG files like it does with GIF. Usually they get broken by the compression system and only show the first frame. Same for GitHub Markdown, WordPress, most forum software... As it turns out, the only case wen you can reliably use APNG is when you're the one writing the HTML and at that point it's usually better to use a muted video anyways (far better compression).