Your car, unlike pre summer 2015 cars, has standby power supply which explains the low drain.I have a 2020 MS LRP and ran a 2-week test. Car was in the garage, plugged in, Sentry Mode off. Charge limit was set ato 50% and when I left the car was at 70%.
Over the 14-day period the car lost 8 kWh total, or about 570 watts per day. I prefer to use kWh because using miles varies by car model. But for those who like miles, my range is 402 miles so 402 *8% = 32 miles (2.3 miles / day).