There are none. Most of the Teams "policy" cmdlets are powered by the old SfB infra, and can only be leveraged via PowerShell currently.
How to change teams policy with GRAPH API

Damien ARNAUD
21
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Hello,
I currently use these types of commands to assign TEAMS policies:
Grant-CsTeamsUpgradePolicy -Identity "xxxx@X " -PolicyName UpgradeToTeams -verbose
What are the equivalent commands with GRAPH API? and how can I easily find them?
thanks in advance for your answers !