Mostly nice, but can't an on/off switch be just that?
So with the fingerprint reader in the on/off button, if you need to read a fingerprint again once the machine is running, can you do that without it taking it as "off" and switching itself off again? Maybe short touch for fingerprints, long for on/off? Or touch vs push?
I get annoyed with my work laptop (Dell) putting the power light inside the on/off button, so if you want to see whether you've held it down long enough yet, you have to put your finger only half-way on the button as otherwise it covers the light up.
And thinking of accessibility for the blind, separate buttons for "on" and "off" so you don't have to be able to see the display or take some other action to find out, to know whether you're switching it on or off, would surely be better anyway.
That's one of the aspects in which my first ever laptop, an Epson PX-8, was more advanced than most that have come after it: a proper slider switch with a positive action for on/off. You knew where you were with that! Not that in fact I have a problem with switching laptops on or off accidentally, but still putting more functions into that one control seems a bit like expecting your car's ignition key to control the windscreen wipers too. (The other way it beat modern laptops was that it had a carrying handle built in.)