Does using Electric stove vs Gas stove have any difference in food taste?

There is no difference in food taste when cooking using gas or electric. Gas burns pretty cleanly so is not going to leave a flavor residue you could detect.

Cooking over flame as in a barbecue or a pot over a campfire does change the flavor because of the smoke, that's the only case I can think of where the heat source can change the flavor of the food.

No Only when smokes is added by the cooking method does it effect the taste. The only real reason why gas is preferred over conventional stoves is that you can control the temperature of a gas stove much more accurately.

Gas mark 1, 2 and are a much more universally accepted temperature gauge then what is the case with conventional stoves that may all be different in the temperatures they give at there various marks.

I think there might be a maybe? I find that there is of course differences in responsiveness between gas and electric. Gas is much quicker to respond in temperature, either raising it or lowering it. Electric is much less responsive. I'll take a gas range over an electric one any day of the week.

But here is my maybe...if you were to actually cook food directly with the actual heat of a gas or electric stove, there might be a difference. I would say that the heat from gas has more water vapor. If you put a clear heat proof glass container a little above a gas flame you will see some vapor on it. I would say this is lacking in electric, it is a dry heat.

I will frequently cook/reheat both corn and flour tortillas or charring veggies, directly on the gas hob and also directly on those old fashioned electric coils. I would say that there is a difference, as the electric coil heated tortilla has less moisture and a bit more crispy. And ones heated on gas is warm, but not as crispy. With the coils, you can place food directly on the coiled surface, which will cook differently. The gas flame needs that little bit of space between it and foods you cooking, or else it is extinguished. Or perhaps it's just me, but this difference only exists when you cook food directly with the heat from either gas or electric.

If you compare a high quality electrical stove vs. a gas stove - from my personal experience, there is no difference.

But, if you're talking about cheap electrical stoves, those heat and cool very slowly and might cause food to overunder cook.

Personally, I always prefer the good old gas stove.

Of course it's better with gas, it cooks quicker therefore retaining moisture in the food, which aids taste...try cooking a full breakfast to prove my point.

It actually does for specific dishes but only because with a gas burner you can achieve higher temperatures which allow for a faster Maillard reaction. This is especially true when cooking in a wok. The higher temperature will allow for a faster charring and less loss of water making for tastier and more tender food.