Allow users to caption GIFs
Slack has an option to caption your gif with your own text, but this isn't an option with Teams. This is critical in expressing exactly the sentiment desired.
Neysan Sturdivant commented
you can do captions on any custom image you want to load or any meme you have recently used already in teams. click the Stickers icon, scroll down on the left until you get to "memes" and pick the one you want. then you get prompted for top and bottom caption