Preheat the air fryer to 400°F (200°C) for a few minutes. Place the raw naan in the air fryer basket in a single layer, without overlapping. Cook the naan for 3-4 minutes on one side until it starts to puff up and turn golden brown. Both sides should brown. Remove the naan from the air fryer and brush with melted garlic butter or ghee, if desired. Repeat the process for any remaining naan.