planning to get a pixel phone soon to get gos on it and i have a few questions :)

1 - is there a possibility to get full disk encryption ? (on top of the file based one )
2 - what is the fastest way to copy files to the computer , currently i'm using https://forum.xda-developers.com/android/general/tool-adb-overlay-t3921133
3 - what are the available anti theft solutions we can use with gos ?
4 - miracast and hdmi over usb c are unavailable with pixel phones which sucks a lot , what are the alternatives to connect to another display ?
with some research i found displaylink hubs work but was wondering if there are any alternatives
5 - is it possible to record 4k60 with pixel 4 / xl ? if so how ?