Clicking and Dragging?

From what I understand, while Position will return the position of my mouse whenever it changes, the same is not true for clicks. If I want something to happen while the LMB is clicked and being held, I need to be calling that method in Update to see if the current state of the action is Performed, right? Everything the Input System does should just be tossed into Update and constantly checked to see if something’s happened, or else needs to be configured to not use Invoke Unity Event but Broadcast Message instead?