I have an X1 Extreme, and have been really wrestling with moving over to Ubuntu....

isodude · on June 17, 2019

We use X1 Extreme with a mixed bag of Ubuntu/Fedora/Arch. There are problems sometimes, like the thunderbolt works after updating to the latest BIOS.

All in all people are pretty pleased with the experience.

My coworker is running Arch with Sway/Wayland and is pretty pleased :)

There are some problems with adding a second screens but I think it's related to i3/Sway and our monitors.

BonesJustice · on June 17, 2019

Should be okay now. There were several BIOS updates early on that made it possible to brick your machine by toggling seemingly innocuous settings, like discrete/hybrid graphics or thunderbolt support.

As far as the Linux experience goes, I’m not aware of any issues apart from the fingerprint reader. I have never attempted to use thunderbolt connectivity or charge anything over USB.