No, you should be cooking, dipping, and drizzling extra virgin olive oil on your food that tastes good. While your extra virgin olive oil can have different flavor profiles (i.e. citrusy, grassy, floral) that you prefer to use in certain dishes, there isn’t a difference in the quality between these the oil you cook with vs. drizzle on top. Always ​taste test the extra virgin olive oil​ to ensure it's delicious, then you should be good!