Does running an idle k3s cluster really require adding a heatsink to the rpi? I would have thought this would generate very little load, and a major temp incre

Does running an idle k3s cluster really require adding a heatsink to the rpi? I would have thought this would generate very little load, and a major temp increase might indicate a bug in k3s? Is there a bunch of cpu-intensive work an idle cluster needs to do?