I agree with a lot of the above, but then there's:

> Docker is still maintaining the runtime on which orbstack, podman etc are all using, and all the cloud providers are using

I need to fact check that one. runc was donated by Docker to OCI a while back. And containerd was created under the CNCF from a lot of Docker code and ideas. podman is sitting on the RedHat containers stack, which has their own code base. Docker itself uses runc and containerd, and so do most Kubernetes deployments. Many of these tools go to containerd directly without deploying the Docker engine.