I run Manjaro Linux with i3wm on a T14s gen3. I connect to two 2560x1440 external monitors via thunderbolt 3 dock.
I wish I could say it is 100% stable. It's close, and close enough for me to rely on it. Occasionally when I plug in to the dock the external monitors do not activate. Also if I plug in power while suspended, it powers on. I have face unlock working, which is nice. I have problems with connecting my Samsung bluetooth earbuds, but I haven't tried very hard to make that work well.
Idles at around 5 watts, which is nice. Real world use is around 6-8 hours battery, which is just about good enough for me. I had an X1 Extreme gen 3 before and it was the battery life that made me change. Before that a P51s which I do miss because of the clunky docking station and numeric keypad. It was too heavy though, and battery only just ok, even with two batteries including extended at the rear.
Shortly. T14s Gen 4 AMD are certified (you can check on the Canonical website), but (from official sourcec) Lenovo hasn't made available (due to internal testing) the Linux image yet.
How the image relates to upstream... I have no idea.
I wish I could say it is 100% stable. It's close, and close enough for me to rely on it. Occasionally when I plug in to the dock the external monitors do not activate. Also if I plug in power while suspended, it powers on. I have face unlock working, which is nice. I have problems with connecting my Samsung bluetooth earbuds, but I haven't tried very hard to make that work well.
Idles at around 5 watts, which is nice. Real world use is around 6-8 hours battery, which is just about good enough for me. I had an X1 Extreme gen 3 before and it was the battery life that made me change. Before that a P51s which I do miss because of the clunky docking station and numeric keypad. It was too heavy though, and battery only just ok, even with two batteries including extended at the rear.