FWIW as others have said, 200A is a LOT of power for a house.
Own house is 5300 sq feet. 2ea 5T heat pumps, all electric kitchen and WH (no pool), 2 electric clothes dryers
I have TRIED to trip the 200 A main breaker, never have done so.

hmy:
Best try loads for 15 minutes or so - the heat pump shuts off typically within 15 minutes:
Wife using 10 HP pressure washer, 48A (e.g per Fluke clamp on meter)
I'm out back welding @ 50A ac draw - note - have tripped the 50A breaker after over 1 hr welding with 320A welder.
Heat pump running at 25 A
WH running at 22A
38 A both clothes dryers running plus washer and
Double oven on 18A - probably cycling though
Boiling a couple pots of water on induction stove top, 22 A
Water pump on well running 12A
Had a couple of 5 HP air compressors turned on also, but those turn off within a few minutes.
235A, main breaker still not tripping (QO) Current at RH side of SQ D trip curve, probably need to run for a few hours on a hot day to trip ?
Have not tried turning on the 2nd stove and oven in the basement at the same time or connecting the other welder in the 2nd shop ....:?