This is related to this other question Prevent MacBook Pro from turning on by touching trackpad.
My new MacBook Pro (MBP) seems to fails to actually shutdown when clicking "Shutdown..." in the "apple" menu.
When I click on "Shutdown..." in the "apple" menu, the laptop behaves as if it was going to sleep rather than fully shut down. It looks as if it does actually turn off (turns black). But then a simple touch on the trackpad or a hit on any of the keys "wakes it up", as if it had been turned off and was powering on again (it goes through the black background screen with the white apple in the middle and the progress bar).
In contrast, if I force shut it down using the touch id button, then the MBP behaved as expected, i.e., it would only turn back on using the touch id button again, and would not turn back on by a simple touch on the trackpad or by pressing a key on the keyboard.
EDIT: after a couple more tries, it appears I was mistaken, in the sense that even force shutting down the latpop does not actually solve the problem (see the discussion in the comments to Monomeeth's answer below)
This unfortunately has nothing to do with how long I wait between clicking "Shutdown..." and pressing a key or the trackpad: This has happened many time after waiting the whole night between clicking "Shutdown..." and pressing on the trackpad. In fact, I have clicked "Shutdown..." many times in the last month without ever having to press the touch id to power my laptop on: I always simply pressed on the trackpad, which made me believe this was the new normal with MBP and triggered my asking of the other related question.
Note also that I never get an error message of the type: "Application X prevented your laptop from shutting down" after clicking "Shutdown...".
I am obviously not fond of having a "Shutdown..." button that does not workperly pro and having to force shut down my laptop every time I want it to actually turn off.
My questions are:
Is that a normal behavior for a new MBP? Anyone ever faced something similar? Are there any known instances of a new MBP not actually shutting down when clicking "Shutdown..." in the "apple" menu?
What might be causing it? Could it have anything to do with peculiar "Energy saving" settings? Or could it have something to do with an app that would be preventing the laptop from actually turning off without triggering an error message?
EDIT: I have checked on my wife's new MBP, and it behaves in exactly the same way. Is that really a new feature of the latest generation of MBP?