nitpick: Containerfile. I mention it because people still think container==docker. I am sure the Fedora people focus on podman, as part of the Red Hat ecosystem. For a better dev experience they offer podman-bootc¹, which you will miss when using Docker. Personally I am convinced that we should steer people to podman instead of Docker.
I think it's also worth noting that the Dockerfile format is still driven by Docker, and there have been zero extensions to the format by Podman folks, so Containerfile==Dockerfile.
1. https://docs.fedoraproject.org/en-US/bootc/getting-started/