Depends on your terminology. I cook all kinds of meats in my WFO, but I don't call it smoking or making BBQ. When I cook in the WFO directly over coals, I call it grilling. When it the meat is cooked from the residual heat, I call it roasting. I particularly enjoy grilling steaks and roasting poultry chickens in the WFO. And baking breads.
Exposing the meat to a steady stream of fresh smoke under very controlled temperatures is what I call smoking or making BBQ. A WFO is not particularly good at that particular task IMO. You can do it, for sure, but depending on the desired results, a dedicated appliance does a much better job for things like ribs, brisket, pork shoulder, etc.