I built a camper and have remorse that I did not put in an induction electric stove top.
I could have tossed a butane portable stove in the floor cabinet just in case, but when camping I do not do fancy exotic cooking things, I never bake, so at least I abandon the oven long ago. Quick one-pot meals are best for me, less cooking, less cleaning (less water use).
I have an electric fridge, so using more of my two GC batts might be too much on cloudy days, so you really need more than what two lead acid GC batts can provide, fortunately this is lithium battery days, so that would be how I would go if all electric. I do have solar, but overnight my 6 yr old batts will need most of the power if I am using half the fridge for a freezer. if freezer side turned off then power need is way down from that.
Heating in the cold is the drawback. You have to keep your water from freezing, whether it is for pipes or just so you can still pour it.
In this case I would have used a diesel heater as I do not use the furnace that much as it is. Diesel heaters do need to be cleaned so are not as easy as the propane models, but they also do not use up your battery.
The other electrical uses (tv, charging, lights, fans) are all up to each individual as to what they need, so that has ten thousand answers, none that will help much here.