There is podman-compose, but it is most definitely missing features vs. docker-compose (as in whole subcommands are absent). I cannot remember what (if any) missing podman features remain, but I do run into occasional bugs and regressions with certain functionality.
Curious you mention needing `--format=docker`; I’ve pushed images to Docker Hub without doing that without issue.
You'll be able to successfully push the images without it. Tags you pushed won't properly show up in docker hub and clients will have issues pulling not just the tags but the layers.
It's been a hot minute since I hit that issue, but I kind of doubt docker hub fixed it. I suspect fixing issues around OCI format images are fairly low priority for them.
Curious you mention needing `--format=docker`; I’ve pushed images to Docker Hub without doing that without issue.
https://github.com/containers/podman-compose