Set up Teams premium license and verify from end user teams application the license status

Hello ,

i will enable for many users the teams premium license .how to check from end user that its license is synchronized from end user teams application ?may be just check one new capability is showing from the teams application .if yes ,is there a very simple verification?

how to enforce manually the premium license in case the end used desktop teams application doesn't get synchronized with the team premium license ?

regards