Chromebooks are among the better-documented and more open hardware platforms. The document above indicates how to disable firmware write protection both within and without the operating system.
It also includes this quote:
> Since the start of the project, the Chrome OS team strongly believes that when someone buys a device, they own it fully. ... To that end, we strongly believe that users must be free to fully program their device in any way they want.
Can you point to any ChromeOS devices that have violated this principle?
If this is the case, then why doesn't Google provide an official utility to install another OS on it?
You probably want one that supports uefi firmware, which I think is libreboot.
At least it was possible to hack the devices, but no such bullshit is ever necessary on any regular laptop.
Opening the laptop would not void any warranty in the EU, or US.
That is FUD. Manufacturers can not prevent people from "opening their devices" with threats of voiding warranty, and even putting the stickers that say that are illegal for which the FTC sent a latter to many manufacturers including Apple to tell them to knock that off.