Aren't the XReals just displays in the glasses? If they work with other devices, it's no surprise linux can just use a display standard.

But they work out of the box, which is my point. You can use a device that can be inbetween which places screen into fixed space in front of you for example. While it is cool, it is kind of a hassle to have this device inbetween. I just plug them directly and they work.