Earlier quoted context omitted.
What? So XPS 13 which you can buy with Ubuntu preinstalled still has parts of the hardware not working after "a few hours configuring everything"? I can't understand how that's acceptable to anyone. Literally every laptop I've installed Linux on had a litany of driver problems.
I have an xps 13 dual booted with ubuntu and windows without any driver issues. Everything works great besides the lousy keyboard and trackpad, and that's all Dell. Actually, there are a few problems: windows can't render fonts clearly a lot of the time for some reason, and it keeps losing the current time, and it keeps erasing GRUB after windows updates. Ubuntu itself runs great
The easiest solution is to use localtime on Linux. Windows can run with the system clock set to UTC but I hear it is rare so it my not be well supported. See more here: https://wiki.archlinux.org/index.php/System_time#Time_standa...