Why nitrokey and not Librem 5?

Sorry for my english but ill give it a try.
It’s time to say good bye to my blackberry.
Even after the end of the support back in 2022 i kept using my blackberry until today.
No problems and flawless usability.
Only the battery needs a replacement since it can barely help me get through the day.
But some apps have no support for the phone and files become bigger.
Nitrokey should be my next big phone and hopefully for another 6 to 7 years.
I only have a few questions about it which may not be obvious from all the reading i was doing for the past 7 days.

  1. Why Nitrokey and not Liberm 5?
    Both phones have profound arguments on why you should buy it.
    What makes Nirtokey better?
  2. The one thing i have always loved about Blackberry was the picture password.
    Unlike the normal pattern lock, which is easy to remember when you look over the persons should, it was , in my eyes impossible to guess the combination for picture password.
    Basically you had to move a number of your choice across the screen and hot a certain position on the picture you had chosen.
    Does Nirtokey have such a thing as well?
    I know it was a fingerprint sensor as well as a pin that you can use to unlock the device but im not a fan of fingerprints or pins because they can be used by a third party e.g. when i sleep.
    Sorry for these questions but i wanna be sure about this before im buying it.