Final answer:
Revert to snapshot is typically a feature of the hypervisor, which allows users to take snapshots of virtual machines and revert back to them if needed.
Step-by-step explanation:
The feature of revert to snapshot is typically a feature of the hypervisor, which is a software layer that enables the creation and management of virtual machines. The hypervisor allows users to take snapshots of virtual machines at specific points in time, and revert back to those snapshots if needed. This feature is not specific to the host OS, guest OS, or underlying storage, but is rather provided by the hypervisor itself.