Why container runtime page for kubernetes version 1.22 still shows docker?

General Discussions
1

i have 2 questions:

  1. why Container runtimes | Kubernetes show docker as supported container runtime? docker support is removed from 1.22 right?
  2. docker uses containerd. and k8s supports containerd. why k8s can not use containerd as runtime which comes bundled with docker?

thanks,
Sandeep