Microsoft Teams is constantly evolving and adding new features to useful features such as the new user experience to create new Teams. The new experience is basically a wizard that allows to create a Team from scratch or from an existing Team / Office 365 Group:
If we choose the first option, we will have three possibilities to create a Team: Private, Public or Org-Wide:
No matter the option we select, in the next screen in the wizard we will have to indicate name, description and classification scale for the Team.
If we choose to create a Team from an existing Team or Office 365 Group:
If we are creating a Team from an existing one, we need to select what elements we want to replicate in the new Team (Channels, Tabs, Settings, Apps and Members).
If we choose to create a Team from an existing Office 365 Group, we only need to selec the source Group.