Highway Etiquette Question

Hi there. I’m a relatively new driver, and I’ve only started needing to drive on the highway frequently over the past year.

When I am cruising in the left lane behind you approaching to pass, but I notice a hazard ahead or a load of cars trying to merge, does it help if I slow to allow you into the left lane? I don’t ever do this with traffic behind me, but if things are light I have done this before. I ask because sometimes the trucks seem confused about the situation. Am I messing up your…

Highway Etiquette Question