Here you can see which Laptops are "certified" for Ubuntu https://ubuntu.com/certified/laptops https://ubuntu.com/certified/laptops From my experience most of

Here you can see which Laptops are "certified" for Ubuntu https://ubuntu.com/certified/laptops https://ubuntu.com/certified/laptops From my experience most of the support hinges on the WiFi chipset, so some Dells have great support while others have none.