While it's nice that Dell promotes Linux, they need to greatly improve their support for the products they sell. I bought an XPS with Ubuntu and regret it: persistent wifi issues, erratic power consumption with sleep/suspend, and zero software diagnostic tools available for download. Tech Support was friendly and helpful but was ultimately unable to help me troubleshoot, seeming to have no Linux-based tools, manuals, or experience on their end. I was somehow even more out of luck when I upgraded from 18.04 to 18.10 -- Support resisted providing any support for a non-Dell installed OS version.