Hello @Philendran Rajan
Intune or Microsoft Endpoint management is not meant for Server Operating Systems
It is supporting Endpoints and Mobile Devices
https://learn.microsoft.com/en-us/mem/intune/fundamentals/supported-devices-browsers
You may achieve Server Management via SCCM and SCOM tools
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I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards