What are connections ?
Followers: refer to the list of users that are interested in you or your content and follow your account. Therefore, they are able to see your live posts on their reel and interact with them.
Following: refer to the list of users whom you are interested in and follow, and which their latest posts show up on your reel whenever you open the app.
Friends: refer to the list of users that follow your account, and you follow them back or vice versa. On the reel, you are able to view each other's live posts instantaneously.