where do you store your passwords to unencrypt them?
Generally speaking, I use a self-hosted password manager for most of my online passwords. For passwords to encrypted drives I use paper back ups, much as I do with seed phrases. Since I use full disk encryption on everything, for my daily access drives I also have the passwords in memory since I enter them several times a day more-or-less every day, but I still have paper back ups.
I think LUKS is something you might use for Linux. But I never tried it. But it looks like it would be a breeze...
It is indeed. LUKS is already integrated in to every major Linux distro, and is what I use for whole disk encryption.
I do agree with Welsh, though. My bitcoin wallet back ups are largely non-digital.