VMs have not been supported in our Enterprise version with HA.
That applies to both 13.x and Electric Eel… Community editions only.
The transition to Incus is step 1 of that Enterprise HA plan in Fangtooth
We are working on GoldEye being step 2.
VMs/Instances are marked as “experimental” because we understood software upgrades would not be smooth for VMs. However, we would like to understand where the complications are and then improve the process and documentation.