Is Chinese qi gong a kind of kundalini yoga?
If there is any contemporary teaching that is even more diverse in approach than kundalini yoga it must be qi gong.
As a result it is hard to compare kundalini yoga to qi gong. From my limited exposure to qi gong it is clear there are many qi gong practices that are identical to kundalini yoga practices. What is also clear is that may qi gong practitioners have reported experiences that are identical to those of kundalini yogins.
In so far as each of these practices aims at eliminating blocks to the qi/prana energy then they share a common ground.