When updating some packages, such as the glibc, the needs-restarting -s command instructs to restart a number of services, including dbus-broker:

# yum -y reinstall glibc
# dnf needs-restarting -s
[...]
systemd-udevd.service
user@0.service
dbus-broker.service          <<<<<<<
systemd-journald.service
ovs-vswitchd.service
[...]

This is problematic, because restarting dbus-broker leads to breaking system logins and other components, such as firewalld (tracked by RHEL-94927), as explained in RHEL-94912 for systemd-logind.

IMHO, when a reboot is required (e.g. because of glibc update), the dnf needs-restarting -s command should not list the services to restart, but tell to reboot the system instead.