> Show me an industry that ships source code, and manuals with all software that runs on the device, along with hardware manuals and the manuals to write your own drivers and doesn't use hardware primitives to enforce their business models over you, then we can talk

Here you go: https://puri.sm/products/librem-5

(And indeed, their Pureboot with Heads and a hardware key allow to restrict which OS can be booted on laptops, while not restricting the user.)