Behavioral data at least. When and how person charges phone, how much they use phone and what times.

This is my thought as well. In the end it would be similar to bringing a balloon deep under water, the pressure from all sides would just compress the air inside the to match the pressure outside the balloon. Unless if the rubber had some bad imperfections that were to break under pressure, the balloon should survive.

I was here

I have KeePassDroid but whatever works, the standard is open baby

Keepassxc with databases in nextcloud for easy sync between devices

Scrolling with dark mode and suddenly 1000 suns on the screen feels terrible