If not, which is understandable, is there something specific to stable/14 for interested parties to familiarize themselves with?
The most accessible summary of his work is probably on his Patreon: https://www.patreon.com/c/cperciva/posts. If you go digging there are also some anecdotes on his Twitter too; most recent I can find is https://x.com/cperciva/status/1833735559614988526
There's also a somewhat out of date summary of most of the work on the FreeBSD wiki: https://wiki.freebsd.org/BootTime
If not, which is understandable, is there something specific to stable/14 for interested parties to familiarize themselves with?