Bei der DKB ist as genau andersrum: die Debitkarte ist gratis, Kredit- und Girokarte kostet extra (ich meine um die 2,50€ pro Monat)

what kind of prof is that?

Almost all Linuxes are really private. Because of your ethics and morals, I would probably switch to Debian or Arch, and use Flatpak where possible to prevent apps from spying on one another and reading files from other apps or your system.

Kicksecure, Whonix, Tails, Qubes, … exist but they’re not needed and to much of a hassle for day to day use for most people.

They already have the Framework Chromebook, which should ship with Coreboot.