For a lot of my cooking, especially stuff that stinks or spatters, I've been using the small Coleman two-burner stove I bought for tent camping forty years ago. Converted from liquid fuel to LPG, the burners become seriously oversized, output almost like a large gas grill or LPG fryer.
I think the concern about cooking smells, moisture, in the small RV space is why outdoor kitchens are becoming popular again. In the early days of RVing, outside and around back was the most common location for a built-in stove, icebox, kitchen sink.