Understanding private channels
Private channels were the most requested feature ever since Microsoft Teams was released, with more than 25,000 requests for it to be implemented. It took almost 3 years for them to be publicly available:
A private channel has pretty much the same functionalities as a standard channel. The main differences between the two are individual site collections and special permissions are not inherited from the team.
What is a site collection?
A site collection on SharePoint is a container for a group of sites, files, or pages that has its own permissions. A site collection starts with a top-level site and can contain other subsites underneath.
A private channel scenario—Geno the basketball coach
Geno is a college basketball coach who uses Microsoft Teams to manage everything related to his team. He has created several channels inside his team that are publicly available to athletes...