> You'll probably also find out that one or more of the following will also not work properly: Bluetooth, sleep, wake from sleep, fingerprint readers, audio.

YMMV but in my experience this comes down to the quality of components used in the laptop. I've never had trouble out of Intel networking (ethernet, wifi, and bluetooth) under Linux for example, but anything else is hit or miss. It's not a perfect rule but the nicer laptops (Thinkpad X1 series for example) tend to be the ones that get components with good Linux compatibility… midrange and below by contrast is a minefield.