What were you trying to do that didn't work?

systemd[1]: /usr/lib/systemd/system/virt-who.service:7: PIDFile= references a path below legacy directory /var/run/, updating /var/run/virt-who.pid → /run/virt-

who.pid; please update the unit file accordingly.

Please provide the package NVR for which bug is seen:

virt-who-1.31.26-1.el9.noarch

Upstream report: https://github.com/candlepin/virt-who/pull/409