https://github.com/coreos/rpm-ostree/issues/4525
GitHub
Since the latest systemd supports "soft reboots", we can distinguish whether there's a kernel update pending and invoke systemctl reboot or systemctl soft-reboot as appropriate.
2021-07-05,2021-07-11,3,CONFIDENTIAL PREVIEW \xc2\xab\xc2\xb1\xc2\xbb Hybrid Decisions\xc2\xae SaferOS\xe2\x84\xa2,3315,generic,x86_64,3,fedora-modular-33,x86_64