M1 Macs have another hidden boot mode
And yet, when I had to return my M1 Macbook Pro 3 weeks back because of dead pixels, the dude at Best Buy told me that in order to wipe it, they had to update the OS because the version of the OS that came installed had a bug that would make the machine unbootable if they tried to do a factory reset from that version. So it had to download ~3gb to update the OS, just to wipe itself.That's just bonkers.