I don't think an anecdotal experience with the Yoga line is compatible with the claim that "if you want to buy a Linux laptop, avoid Lenovo like the plague."

I've had great experiences with my Thinkpads (t410s and t530) running Linux. Granted, I was just running Ubuntu, but I never had an issue. I will note that I disabled the fingerprint sensor, camera, and microphone at the BIOS level so didn't have experience dealing with those drivers. I expect most others will have a fine experience with the non-touchscreen Thinkpads, and probably some of the newer models as well.