system
A chat on subreddit /r/pcmasterrace
human
It's mostly related to XMP profiles being specifically tuned for AMD iirc (I forget what AMD calls XMP again because my mobo just calls it XMP lol). Should work fine either way, maybe requires some timings tweaking but I highly doubt it.
gpt
DOCP, at least on my Asus x570 board.

Edit. I'm aware this is an Asus specific thing.