Instagram’s new "Join chat sticker" lets you ask your followers to join a new group chat.
The feature was recently announced on Instagram’s official Twitter account: “Introducing the new chat sticker in Stories. Now, there’s an easy way to start conversations with a group of friends right from your story.”
Here's how it works:
People viewing Stories can request to join group direct message conversations tied to those Stories, and all requests must be approved by the Story creators.