Deleting a group on Messenger is a relatively simple process. All you need to do is open the group chat, tap on the group info icon, and then select the “Delete Group” button. You will be prompted to confirm your decision, and once you do, the group will be permanently deleted.
There are a few things to keep in mind before deleting a group. First, make sure that you are the group admin. If you are not the admin, you will not be able to delete the group. Second, once you delete a group, it cannot be recovered. So, make sure that you are absolutely certain that you want to delete the group before you do so.