I've used podman on an RHEL server at work because it works nicely with selinux. I had a hell of a time with rootless containers and network throughput when using an nginx reverse proxy. Made the site painfully slow. Turned out it was due to the slirp4netns rootless networking and MTU size. Just decided to say screw the rootless thing and went rootfull. Next time honestly would just use docker since it's more common