Request Format: Creating a request to the API involves specifying the user's ID or user principal name. This straightforward GET request to /managedDevices returns a collection of devices assigned to the user.
https://graph.microsoft.com/v1.0/deviceManagement/managedDevices?Sfilter=contains(userPrincpalName, ‘test@domain.com’)
Powershell queries
connect -MSGraph
set-IntuneManagedDevice | Get-MSGraphAllPages | Where-Object {$_.userPrincipalName -match
“test@domain. com}
jet-IntuneManagedDevice | Where-Object {$_.devicellame -eq “”}
Remove-IntunemanagedDevice -manageddeviceID “”