You are limited to what ever the main breaker in the RV is rated at.
In my case that is 30 amps. I have gotten around that limitation by adding auxiliary shore power cords. One is used to run the electric water heater (the heater doesn't care about low voltage--it just takes a little longer to get the water hot).
I have a "break out box" for a 50 amp service which has 2 20 amp circuits on one leg (with breakers) and 1 30 amp circuit on the other leg (with a 30 amp breaker).
Or if there is a shore power pedestal that has 30 and 15 amp outlets, I can run two cords.
The other auxiliary shore power cord is used for electric heating in the winter. That lets me get to a peak wattage of about 7200 during the worst of the cold.
I do monitor voltage and total wattage being used. The hybrid inverter does load support which means no more over loads when there is only 15 amp shore power. Load support is NOT voltage support--hence the autoformer.