There are three team roles in Notes:
Member - regular user with no administrative capabilities
Admin - can manage users, team profile, and integrations
Owner - can manage users, team profile, integrations, and billing
By default the first users on a team will be the Owner and will be able to manage the account completely. They can then assign Admin rights to specific users who can then in turn manage users, the team profile, and the integrations.
Members will not be able to make changes to any users, team profile, integrations or billing.