MSGraph- Disable EntraID (AAD) sync and revert users to cloud.

 Install-Module Microsoft.Graph.Identity.DirectoryManagement -Scope AllUsers -Force

Import-Module Microsoft.Graph.Identity.DirectoryManagement

Connect-MgGraph -Scopes "Organization.ReadWrite.All", "Directory.ReadWrite.All"

$orgId = (Get-MgOrganization).Id

Update-MgOrganization -OrganizationId $orgId -OnPremisesSyncEnabled:$false

(Get-MgOrganization).OnPremisesSyncEnabled

# Should return: False