IN the documentation we are stating this "By default, OpenShift Container Platform uses Linux control group version 1 (cgroup v1) in your cluster. You can enable Linux control group version 2 (cgroup v2) upon installation. Enabling cgroup v2 in OpenShift Container Platform disables all cgroup version 1 controllers and hierarchies in your cluster." but on the release notes of 4.13 https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-13-release-notes.html#ocp-4-13-nodes-cgroup-v2-ga we are stating this "Linux Control Group version 2 (cgroup v2) is now generally available in OpenShift Container Platform 4.13. There is no new functionality in the GA version."

a bit lower on the same page https://docs.openshift.com/container-platform/4.13/installing/install_config/enabling-cgroup-v2.html#nodes-clusters-cgroups-2-install_nodes-cluster-cgroups-2 we are stating this
"Create or edit the node.config object to specify the v2 cgroup:apiVersion: config.openshift.io/v1
kind: Node
metadata:
  name: cluster
spec:
  cgroupMode: "v1" " but actually the manifest its enabling cgroupv1 not v2.

This sections are a bit confusing.

    1.
    2.
    3.
    

    https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-13-release-notes.html#ocp-4-13-nodes-cgroup-v2-ga