Neowin

Microsoft is retiring Graph modules for Windows PowerShell 5.x0 0

Microsoft is retiring Graph PowerShell 5.x support over 12 months, ending v2.x releases and making PowerShell 7.x the recommended platform.
Windows Report on MSN

Microsoft Graph PowerShell v3 will drop Windows PowerShell 5.x support

Microsoft begins a 12-month retirement of Windows PowerShell 5.x support for Graph PowerShell as development shifts to PowerShell 7.x.