I have 2 Lenovo X1's of different generations running Linux, the Lenovo thunderbolt dock and another USB C dock, and there are problems for every configuration

I have 2 Lenovo X1's of different generations running Linux, the Lenovo thunderbolt dock and another USB C dock, and there are problems for every configuration of devices. I get dropped keystrokes, flakey network connections, flakey audio, and monitor flickering. I don't know if the problem is Linux, Lenovo, or both docks. I'm not even sure how to start debugging this problem.