Can't say how a 2024 is set up but on my 2011 if the heat is set to electric, the heat pump will come on along with the gas furnace. The gas furnace will run till the indoor temp is within 1 or 2 degrees of the set point, then the gas furnace will shut off and the heat pump will continue. If the heat pump can't keep up and the indoor temp again drops below that 1 or 2 degree set point the gas furnace will fire again to help out. If the heat is set to gas, then the heat pump will not come on at all.
Of course the heat from the heat pump comes out of the ceiling vents and sounds just like the air conditioning while the heat from the furnace comes out of the floor vents and is quieter.
Pretty sure most if not all Winnebagos with heat pumps operate this way (when set to "electric") as it has come up before here. It's all explained in the manual.