You had better choose a computer:
with an Intel graphical chipset (perfect support by Linux-libre, better than
most nVidia cards, smaller energy consumption, cheaper);
without Windows (Microsoft does not deserve your money).
If you do not buy you computer from ThinkPenguin or Ministry of Freedom and
if you cannot check it (with a Live system), expect the Wifi to not work. You
can buy a Wifi dongle from ThinkPenguin or Tehnoetic (or second hand if the
seller indicates the chipset) to solve the issue. The same probably holds (to
lesser extent?) for Bluetooth. I do not really know. I never use Bluetooth.
The BIOS will be proprietary software unless you buy your laptop from
Ministry of Freedom.
