Funny that this is what trends, and not the flame chart of the different boot times of different FBSD versions: https://twitter.com/cperciva/status/1659059445685420032

At a glance looks like 13.1-RELEASE booted 3x faster than 11.1-RELEASE, and 14.0-CURRENT on Firecracker boots 45x faster than 11.1-RELEASE on a c5.xlarge