Is Case Management part of NextGen Help Desk?

Summary:

Could someone please help me understand if Case Management is part of NextGen Help Desk?

Content (required):

We are implementing NextGen Help Desk and would like to understand if the Case Management is part of NextGen Help Desk or Service(CX) product. If this is being shared between HCM and Service, is it a separate license or can be enabled and implemented along with NextGen Help Desk?

As per this latest implementation document, the Case Management is under Service.

Any of your thoughts would be sincerely appreciated.

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):