Learn how to build an iOS Siri Shortcut to create an animated GIF from a Live Photo. This can be tricky because you can't choose the image from a Share Sheet and you need to convert the Live Photo to a video first using Encode Media. But once you get all the pieces in place it is easy to set up the shortcut and have it ready to use. Then you can share a Live Photo as a GIF on social media.
You can also watch this video at YouTube (but with ads).
View the shortcut
You mentioned going to the App Store to download shortcuts. I found several shortcut programs. Which one.
Debbie: I only see one come up. But if you see more, just get the one that is from Apple.