Nowadays there is ARM SBSA which aims to resolve the problems and allow a PC-like product to be built (the main reason such a thing didn't exist before is lack

Nowadays there is ARM SBSA which aims to resolve the problems and allow a PC-like product to be built (the main reason such a thing didn't exist before is lack of interest). In the meantime the GPL helps to ensure at least the source code for the drivers for the Linux kernel are revealed. BTW, notice the "server" in the ARM SBSA name.