Those are the headers of the response, not sure why they are returned. Are you running this in Windows PowerShell? Try using PowerShell 7+ instead and make sure the module has been updated to the latest version. With those, you should see no response at all on "success" execution of the cmdlet (the response is an "200 OK" with empty body).
For any Graph cmdlet, you can try running it with -Verbose -Debug to see the actual request/response. I guess we can safely assume that the above executed OK, given the lack of error messages. But I'd still recommend the latest module/PS 7.