I honestly don't know why anyone would want to use the pen on a laptop. Would be a horrible experience that would offer little if any benefit.
To each his own I guess... I use my pen on my Surface Book in One Note and laptop mode all day long. No it's not as fluid as when in clipboard mode but with excellent palm rejection it works very well in my opinion
Surely using a pen on a hinged screen makes for a very unatural experience? I have occasionally used the pen with my sp4 upright and that is plain nasty due to the angle, and the screen is even solidly supported by the kickstand unlike with a laptop.