I’d like to ask if there is a feature in Qubes that would allow you to snapshot appvm so hvm and then return to the snapshot execution state, as is the case with tier 2 hypervisors.
If no such function exists, what is the recommended approach? (For example, have one AppVm in a clean ready state and clone that one?)
Qubes support volume revert based on automatic snapshot.
The default number is 2 per VM and I don’t think you can create yourself one that stay. Someone had the idea of a “pinned snapshot” which is good but not implemented currently.