Although Teams has a PowerShell module, its cmdlets can't get at some of the interesting information for team objects. But the Graph API reveals that information. Combining the Graph with PowerShell makes it possible to retrieve the information with just a little effort. A working example helps make the point, so here's a script to report the Teams channels with email addresses.
https://www.petri.com/exploiting-graph-when-powershell-teams
