This is exactly why initiatives like coreboot and libreboot matter. [1] Sadly since Intel ME was introduced, things went to shit real fast in terms of what UEF

This is exactly why initiatives like coreboot and libreboot matter. [1] Sadly since Intel ME was introduced, things went to shit real fast in terms of what UEFI / the BIOS does, allows or even supports. The embedded controllers are just as locked down by default as any other vendor's hardware. Same goes for the dependency on Intel's mrc.bin or microcode updates (ucode) that is unavoidable since Haswell/Ivy. I'm waiting for a case in Europe that goes to court over this, because we have the right to repair. Without taking a case like this to court, nothing will change. [1] https://www.coreboot.org/Embedded_controller https://www.coreboot.org/Embedded_controller