agree 100%. every dell and thinkpad (and now thinkstation) I've installed ubuntu linux on for the past 3-4 years has worked flawlessly (wifi, sound, and gfx being the big three). What really impressed me was the Dell 5520 I had when working at Google- it had a nice nvidia card that was dedicated to running tensorflow training while the rest of the machine was perfectly usable for software development. All of this on battery.