So I was able to use windows on a Chromebook using RW_Legacy by using dism to install windows directly onto a usb drive (not the installer actual windows,) I am able to boot but all the coolstar drivers don’t work. Do I need to use uefi full rom to use the coolstar drivers?
note: Intel drivers worked.
100% yes
Do note only Linux is supported on rw-legacy
Windows is not supported on rw-legacy
Unsupported means:
Works: good for you!
Does not work: sucks, do it properly
I just thought it was weird that intel drivers worked, but it is probably just the way that the drivers interact with the uefi and legacy bios
at least I can play windows only games at full speed with a mouse 
it’s much simpler: the stock ChromeOS firmware doesn’t have the correct interface for coolstar’s drivers, the UEFI firmware does.
Well, at least I can play windows games on raw hardware without having to worry about my chromeos install
i was surprised it even booted to normal windows
most devices won’t, they BSOD with an ACPI error