Subscription Alias REST API version=2021-10-01 is not returning all the variables as mentioned in documentation.

The GET REST API response for subscription alias in version=2021-10-01 is missing workload, billing scope and few other parameters in properties.
The 2021 version response is not returning all the parameters like mentioned in sample response in the documentation.

https://learn.microsoft.com/en-us/rest/api/subscription/2021-10-01/alias/get?tabs=HTTP

This is the sample response given in the docs:

This is the response I'm seeing using 2021 version:

PS: I have been suggested to raise the issue here in the Q&A forum
https://learn.microsoft.com/en-us/answers/questions/1072907/rest-api-version-2021-10-01-for-subscription-is-no

Start by comparing the linked Subscription Alias GET documentation for version 2021-10-01 with the two responses shown in the issue, then review the linked Q&A discussion for context. Determine whether the specification/documentation or the service response is incorrect; done means the discrepancy is resolved or a clearly scoped service-side fix is identified.

Written by the indexing model from the issue text.