The requested feature is appealing, but as Pike says, it’s also rather puzzling!
No, we can’t because the documented procedure is not compatible with the backup. The manual says:
Please note that the above path won’t be part of the backup.
This can be fine for a backup destination module like MinIO, but it is generally not acceptable.
Podman provides configuration options for storage paths: maybe they can be set to point to a network drive, as we already discussed here: