RKE2 is a Kubernetes distribution, as is RKE. Rancher can be deployed to a RKE2 cluster, same as any other.
On recent versions of Rancher, you can also provision downstream RKE2 or K3s clusters. There’s a check box to select RKE2/K3s instead of RKE when you go into the cluster provisioning ui
I’m not really sure what you mean by “an rke2 management console”