Reformatting postmarket os with ubuntu touch

[mackdaddy67]

1) I suggest you browse the forum and check out the threads pertaining to your questions, there are a lot of   very very important  tips available here.
2) It may be best if you try Ubuntu Touch from an sd card first,  before installing it.
3) "Just my opinion", I would not worry about 'encryption' until you have made a decision about which OS you want to
make your permanent operating system.

The Pine phone does run fairly well from an sd card, It is a great way to test drive a few different operating systems,
  just a little slower response times, not a major difference.

Welcome to the forum, and a new phone experience.

Whole reason I switched to linux was for the encryption component. I have significant encryption experience so I am just trying to understand how ubuntu touch encryption works. I have browsed the forums but still not finding the answers I am seeking. All I need to know is how to factory reset the hard drive inside the phone and install ubuntu touch on it but if it runs so well from sd card perhaps i can just do that instead.