Maybe. My first thought is that Windows appears to pull some default values from system firmware somehow. I don’t know the mechanism (most likely ACPI, which is made for that purpose), but in particular note, over history it seems every laptop model has had its own Goldilocks settings for “reserve battery level” and “critical battery level” (low battery is almost always 20%). Low at 10%, critical at 5%… low at 7%, critical at 3%, low at 5% and critical at 1%? All up to the manufacturer.
Thus, why I immediately jumped to concluding that system firmware also put the default value for hibernate in there - though it’s increasingly likely that’s just one of many “adaptations” Windows makes when it sees that the system is “modern standby” capable (i.e. removing settings, abstracting stuff, making things more “modern” which is to say “you don’t have any control anymore”). So, that could just be a side effect of Modern Standby.
But counter to that hypothesis, others report having “Processor Power Management” options available, as well as giving me a look of weirdness when I say “hibernate was set to 20 minutes”. Then again, the same folks in the same breath also say “hibernate hasn’t been a thing since like 2010”, to which I can only laugh and no longer be sure if they even know what’s going on 
I guess it is, thus, an open question as to whether it’s one of many settings Windows silently “gives to you” during Setup if it detects a “modern computer” (god I feel a little sick calling it modern - like this is just the new normal), and that setting is the same for any computer it detects Modern Standby support for, vs. legacy computers (like my 2013 Dell Latitude E7440 which has been in actual “suspend-to-RAM” with power LED pulsing, for 4 straight days now and only went from 55% battery to 40% battery - tell me that needed improvement?).
Oof, I’m ranty. So many things about computers past that I just wish were improved, but instead, … we got clickpads and Modern Standby (idling and hibernate in a trenchcoat).
(you can tell I love the Framework’s keyboard, though. I’ll reserve my one minor gripe and just say it’s a pure win
)