The Chrome Book I have, that I converted to Puppy Linux, was a big piece of junk for the bios. Getting the bios to boot Puppy Linux was easy. They used a normal UEFI bios and not one of those Chrome OS bios's. The big thing was with Windows 10 S on it. I am sure this HP 11 Stream would have been offered as a Chrome book if they could not put Windows 10 S on it.
Windows 10 S seems to be how Windows is getting put on a computer that would normally be made to use Chrome OS. I am using Puppy Linux and do not care about Windows 10 S, Pro, Home, Whatever I am not trying to figure out how to make Windows 10 S work like a normal OS.