Wanted to mention that I turned off my Ender 5 but a while later walked by and noticed the little screen was on and the BL Touch's red light was on. It turns out the Pi 4's blue USB ports pump out enough power to turn those on! Switching to a black USB does not provide that much power and the printer stays off. Just FYI in case anyone using a Pi 4 is wondering why their printer is on while the main switch is off. Probably best not to use the blue ones in the first place.