I confirmed with the internal team and they mentioned that this question would be best answered by the Terraform team at Hashicorp. Please reach out to HashiCorp Terraform team with any questions or concerns at HashiCorp Help Center or open an issue at the GitHub repository.
Here is a blog with all the information on the Updated HashiCorp Terraform Provider for Azure Stack Hub :
https://techcommunity.microsoft.com/t5/azure-stack-blog/updated-hashicorp-terraform-provider-for-azure-stack-hub/ba-p/3566941
Hope this helps. Let me know if you have further questions.