After the WhatsApp scandals, my trust in encryption is limited. I’m not a mathematician (which is a goddamn shame), and if there is a backdoor in the mathematics themselves, I wouldn’t be able to catch it even if I read the source code. And there is always the possibility of decryption by quantum computers…
So where we store our data is very important, even if it is decrypted. Encryption is just a secondary defense, the primary is limiting the accessibility to the data itself. And where you store the data, and to whom you allow access, determines the accessibility
And you can’t even trust that - good luck finding hardware with open source schematic that is not ancient.
All processors have built-in spyware (Management Engine etc.), and that’s not going to change, since there are only a few highly sophisticated factories in the world that can make them, and the factions controlling those have no interest in producing consumer grade spyware free hardware. Modern processors have become essential for weaponry and warfare, so this is not going to change, only get worse.