Not really. Wood or coal stoves are still very much in use in villages. At least that's what I saw living in many developing countries for the past two decades.
Btw, burning biomass would not change the problem. Wood and charcoal is biomass too.
Wrong again. In developing countries, a majority of people live in the countryside. That's one thing that differentiates those countries from developed countries.
But that's not really important, because even if only 20% of households used wood/coal for cooking, it is very much noticiable.
Btw, burning biomass would not change the problem. Wood and charcoal is biomass too.