I don't get this comment, modern PCs still undergo POST and motherboards have gotten progressively better at displaying POST outcomes (from beep patterns to seven-segment onboard displays).
Macs have POST rituals, detailed (alongside other boot routines) to an almost extreme extent in this article.
No, POST as in the actual test, not just the sound. The article speculates that unlike “other models that have mute boots”, here there might literally be no power-on self-test: “there are no accessible records of any POST taking place on Apple silicon Macs, no other evidence that they do, and even if they did it’s hard to see what they might achieve.”
And the pun in the headline being 'The Last Post', the bugle call played at funerals. (To American ears, it may sound like a slow mournful version of 'Taps').
