The ability to create new Teams using customizable templates is now rolling out to Office 365 tenants. Microsoft provides 13 out-of-the-box templates and tenants can add their own to meet their needs. Microsoft thinks that templates will help standardize the design of Teams and drive best practice. Time will tell.
https://office365itpros.com/2020/10/01/how-to-create-new-teams-from-templates/
