Comment by BenElgar

My general advice would be to check the Arch wiki (https://www.archlinux.org/), whether you intend to run Arch or not. It's a pretty good indicator to determine how much support you're going to get with the laptop and whether things generally work as they're supposed to. For example, here's the page for my laptop: https://wiki.archlinux.org/index.php/Dell_XPS_13_%282015%29