The most important question missing from the FAQ is whether bank apps, government ID apps, etc. will work with this phone.
Everything hinges on app support. Smartphone apps have unfortunately become a hard requirement for basic day-to-day activities. Most companies offer them only for iOS and Android. If your smartphone can't run the vast majority of apps, it is basically dead on arrival. Nobody is going to buy it when they need to carry another phone anyways. The only way around this is either emulation (which Google is trying very hard…
should work for banking and governmental applications, especially as those should already have the workflow in place to support niche platforms.