Almost all firmware is proprietary, so you aren't going to be able to trust it at all. Try to use hardware that has at least open boot firmware like u-boot or c

Almost all firmware is proprietary, so you aren't going to be able to trust it at all. Try to use hardware that has at least open boot firmware like u-boot or coreboot. https://wiki.debian.org/Firmware/Open https://wiki.debian.org/Firmware/Open