The Azure module for PowerShell allows administrators to accomplish management tasks for Azure resources. The Az wrapper module includes only stable modules, the AzPreview wrapper module includes all PowerShell modules for Azure allowing to manage resources in all Azure services.
The Azure Modules for PowerShell allows administrators to accomplish many Azure management tasks through a series of cmdlets. The modules include the new Az module and the older AzureRM module (due to retire by Feb 2024).
References:
PowerShell Module Browser: Search for PowerShell modules and cmdlets.