I have a bathroom in the basement that has: Main Light, Shower Light, and Fan. They are in 3-gang box.
I cannot, no matter what I do, get my family to turn stuff off in that bathroom. The fan is the worst for energy, of course, and is often running all night or even for days if I do not go to the basement.
I do have Home assistant, I also have an Aqara hub. So -there are options, I just want the best option for this type of situation.