Many platforms already stopped using gifs, for precisely those reasons. Tumblr silently converts to animated webp when uploading a gif, imgur converts it to mp4, etc.
The contract for these could be something like "no sound, default playback in a loop, 30 seconds or less; don't render if any of these requirements aren't met" to make sure people don't abuse it for auto-playing videos.
In both cases, the result is a lack of a right-click-to-save option.
_speechless at the irony