Thinkpads are VERY well supported - pretty much everything works, except bluetooth and fingerprint reader. I just ordered a Thinkpad X1 Carbon 6th gen as a replacement for aging Macbook to use as a main home machine.

You can search NYC*BUG board, where users submit their dmesg(8) output, e.g. there is a submission[1] for Dell Latitude e7270.

[1]http://dmesgd.nycbug.org/index.cgi?do=view&id=3466