@meena Mastodon treats video-only files (mp4, webm) like a gif - looping playback, inline, and they're usually smaller than a gif and better quality. I recommend doing that instead of gif if possible.
moof moof i am doggo https://glitch.social/media/cRFxETpFOMmIQCRfEtc
@kepstin and indeed, the thing that actually plays on imgur *is* mp4, but when you press download, it gives you the original gif it was converted from — wonder what the original video that this gif was made from was made from.