Is "productivity at home is same as at office, but work at home has more micro interruptions that researchers couldn't track" a viable theory? Would explain lon

Is "productivity at home is same as at office, but work at home has more micro interruptions that researchers couldn't track" a viable theory? Would explain longer hours and seemingly lower productivity. (Workers are just taking care of little domestic things here at there throughout the day.) They don't say many details about how they determined when people were working.