threads gif function is decent too, but you can only upload gifs from the mobile device. threads doesn't allow gif uploads from desktop version, which is nuts!!!
because the playback loop function of the 1-3 second video lags, glitches, and pauses. the video playback loop is not as smooth as a gif's. also, you can see the video functions at the bottom such as the timer counter & the completion bar, which ruins the seamless effect of a looping gif.
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and it shows video controls for the converted gif (notably different to how it treats keyboard gifs)
twitter and mastodon both work better and deal with gif uploads well