The fragility of Dell's consumer laptops is why I continue to buy Lenovo's which are less sleek but have better durability and run Linux just fine. In recent memory I've had an X1 Carbon and X1 Carbon Extreme Gen 1 and been very satisfied.
Dell OTOH asked for the original receipt of purchase, that of course I didn't have because that also was an used laptop.
Also, the latitude series is way better than the xps line. I've got the latitude 7390 from dell and it's just marvelous.
So yeah, if you're buying new, dell or Lenovo ThinkPad (I'd recommend a ThinkPad though).
If you're buying second hand, ThinkPad is the way.
Im not sure the X1 Extreme is part of the biz line... it's marketed at gaming or more accurately people that want a Work/Play device.