Deepak Vohra explains why you might want to look into Podman:
Podman is a relatively latecomer to containerization. Some of you may have invested heavily in the Docker stack of technologies (containerd, dockerd, and Docker Swarm). You may be wondering if there are any benefits to learning about Podman.
Click through for that answer. One thing that does not show up but might influence your decision is licensing: Podman is Apache 2.0 licensed and there are no commercial costs.