Set up Powershell to Manage Microsoft 365 Mailboxes & Rooms

An overview on how to set up your PowerShell environment for managing ExchangeOnline (Office 365 & Microsoft 365) Mailboxes & Rooms.
Note: Install PowerShell 7+ if available
Install PowerShell Module for Exchange Online
Install-Module -Name ExchangeOnlineManagement -force
You may need this
Set-ExecutionPolicy RemoteSigned
Connect to Exchange
Requires an admin level permission
Connect-ExchangeOnline