No, but it is similar to original. It called routed license, it doesn't harm your server or doesn't effet anything on your server. It is 100% safe and stable.
Yes, you will get offcial updates from CloudLinux directly.
As it is not an original license so you shoudn't contact with the manufecturer. All support will be provided by us. We are 24 hours online and active in Telegram and also you can create support ticket.