[aeyes]

Wake from sleep, not boot. I have a MacBook sitting in front of me and I just tested it: It wakes from sleep pretty much instantly.

[SoftTalker]

Was that a hardware or a software improvement?

My Dell laptop running Ubuntu wakes from sleep pretty much instantly.

[nasretdinov]

Probably both. Apple Silicon macbooks seem to never actually sleep, they just switch to the energy efficient cores, similar to how iPhones / iPads never truly sleep either. You can tell by leaving e.g. a while loop in zsh running and printing the date + sleep, and when you reopen the lid you'll see quite a few iterations actually completed.