Sorry to hear that, I always assumed that at least the ThinkPads were 100% compatible
Fingerprint Drivers have never worked, outside the Lenovo specific spin.
My Dell Latitude's fingerprint sensor worked under Ubuntu in 2014.
Not sure how this is relevant to a discussion about Lenovo laptops
XPSs are Dell.
Old fingerprint readers were reversed. Newer stuff is more tightly locked down. People have reversed the communication protocol, but various other bits are harder to get around due to signatures or other DRM like mechanisms.