I'm curious -- are you able to turn on hotspot and then set your phone down in a central location in the house and have it cover everything in your house, or are you just carrying it in your pocket?
Being centralized would let you have it plugged in all the time, no battery drain due to the wifi wakelock.
I can, no problem. It likely depends on the size of your house or apartment or caravan or yurt and what the walls are made from.