"$" implies no-root privilege.
However, as far as trying this, I got "Could not enable linger: Access denied
".
Therefore, I guess
"# login enable-linger username" is needed here.

Reported by: yamato

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/building_running_and_managing_containers/assembly_porting-containers-to-systemd-using-podman_building-running-and-managing-containers#annotations:c80c487a-e908-4006-bf87-c0c6cb532b8a