podman/docs/source/markdown/options/os.pull.md

####> This option file is used in: ####> podman create, pull, run ####> If you edit this file, make sure your changes ####> are applicable to all of those.

--os=OS

Override the OS, defaults to hosts, of the image to be pulled. For example, windows. Unless overridden, subsequent lookups of the same image in the local storage will match this OS, regardless of the host.