Anyone writing PowerShell code against Azure Active Directory probably uses the Azure AD module. In June 2022, Microsoft will deprecate the API underpinning the Azure AD module. Tenants who want to use PowerShell to create scripts to automate administrative processes will need to move to Graph API calls or use the Microsoft Graph PowerShell SDK. Either way, there’s a bunch of work to do to upgrade scripts.
https://office365itpros.com/2021/06/03/microsoft-lays-out-future-azure-ad-powershell-module/
