Hi @codeagency,
Sorry for any confusion on this. The Teams edition supports upgraded sharing features from the standard user plan. The users in a Teams organization are not upgraded to Premium memberships, those can be added on a per-user basis.
If your goal is to support many users with sharing AND premium user features, then an Enterprise plan is what you’ll want.
Enterprise will enable everything from Teams, such as collection-sharing and the ability add additional users, as well as Premium functions (built-in OTP codes, premium two-step logins, etc) - and will additionally give you the ability to implement user groups and even organization policies to make sure all users abide by the same security rules.