Use an Azure runbook to start Entra ID access reviews for a subset of Microsoft 365 groups or teams only, e.g. based on prefixes according to your group naming convention.
PowerShell
Everything about PowerShell.
The ultimate guide how to securely connect Azure Automation runbooks to Microsoft cloud services including Exchange, SharePoint, Teams, Graph API and Azure.
Best practices how to migrate PowerShell scripts to the Microsoft.Graph module since the AzureAD, AzureADPreview and MSOnline predecessors retire soon.
Use PowerShell to identify legacy SharePoint-only guest users in your Microsoft 365 tenant and activate the modern Azure AD B2B integration.