I always wanted to have a Thinkpad but couldn't afford it - finally bought X1 Extreme Gen 2 and put Pop_OS! (System76's distribution built on top of Ubuntu) on it. Everything including fingerprint scanner works; I once had it hang when resuming from suspend but I mostly don't use sleep/suspend so wasn't too bothered. If you buy the laptop from System76, I would assume everything would basically just work since they are configuring everything.