No 120 volt appliances (House Air Conditioning, Microwave, Coffee Maker, etc) running while not plugged in to a campground pedestal. If you have a heat pump then that won't be working so if the dashboard heat won't keep up while driving you will need to be running the gas furnace. The refrigerator will only be working on propane while driving too.
The engine will be keeping the start and house batteries charged and the inverter should be able to at least run the TV while you stop for breaks at rest areas. Any cooking on the road or while dry camping will need to be done using the gas stove.
Depending on your location you may be going through more propane than usual so it may be wise to top off the tank.
2001 Winnebago Adventurer WFG35U