Source? I can only find articles of people complaining that they can not get the switchable graphics to work or can get it to work and have horrible battery lif

Source? I can only find articles of people complaining that they can not get the switchable graphics to work or can get it to work and have horrible battery life. This guy (https://medium.com/@kemra102/linux-on-the-dell-xps-15-919e6d472aa3 https://medium.com/@kemra102/linux-on-the-dell-xps-15-919e6d...) tried 11 linux distributions and describes his experience as "horrible".