What are the onpremises workloads supported as part of Backup and DR service (previously Actifio Go)

[dheerajpanyam]

Does the Backup and DR service in GCP support  backing up of onpremises Standalone Windows AD or Fileservers that are not part of VMWare cluster? The documentation is not clear and there is  not much clarity on  the supported workloads that reside  on-premises from this link 

My use case involves designing a Backup and DR Solution for standalone on-premises MSFT servers that are not part of onpremises VMWare cluster.

In summary 2 questions

1. What are the onpremises workloads supported as part of Backup and DR Service (previously called Actifio Go) more specific to onpremises VMWare VMs and standalone MSFT servers

2. What is the backup procedure for onpremises standalone MSFT servers if at all this configuration is supported, where does the recovery appliance reside and what software goes into it?