although I've not seen much on K8s + containerd without Docker in terms of tutorials, it is a very new space, and (IIRC) cri-containerd is also pretty new.
I'm not aware of many k8s distro's running anything other than Docker by default, at the moment
IBM Cloud has 1.11+containerd in production (https://twitter.com/estesp/status/1029739247606145025), GKS has containerd as an "alpha" option during k8s cluster creation; Azure has stated direction to move to containerd for AKS (and their OSS deploy tool already supports containerd on cluster creation)
Cool, I guess I'm not surprised that IBM Cloud are leading the way there :) are you aware of any on-prem options shipping Containerd as a default so far?