Quickly check who are Global Admins in your Azure AD with PowerShell

The code below will list the Global Admins in your Azure AD. Note that if using privileged identity management any users currently elevated would also show.

$role = Get-AzureADDirectoryRole | Where-Object {$_.displayName -eq 'Company Administrator'}
Get-AzureADDirectoryRoleMember -ObjectId $role.ObjectId

Also note the PowerShell/Graph API name for Global Admins is Company Administrator.