I've created a few new Binder entries in GitHub for using Shared Mailboxes in the Graph API using PowerShell
The Binder index is https://gscales.github.io/Graph-Powershell-101-Binder/
The topics covered are
The script for these entries can be found https://github.com/gscales/Powershell-Scripts/blob/master/Graph101/SharedMailboxOps.ps1