In 4.16, HCP Openshift Virt introduced a new feature that allows the HCP cluster's KubeVirt VMs to be attached purely to secondary networks (no connection to default pod network)

This functionality gives users of HCP Openshift Virt more flexibility when it comes to how they provide networking to their HCP Openshift Virt worker nodes.

This documentation should be added to the "Adding multiple networks to a node pool" section of the ACM docs found in the following link.

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.10/html/clusters/cluster_mce_overview#add-multiple-networks-hosted-clusters-nodepool 

The ACM docs should add the additional information found in the upstream docs here, https://hypershift-docs.netlify.app/how-to/kubevirt/configuring-network/#using-secondary-network-as-default in the "Using Secondary Network as Default" section.