I've sometimes used baking soda to accelerate softening of beans, and I imagine the effect is more appreciable at higher altitudes perhaps? Some of the usage of baking soda could be innocent enough.
Both are used, for different reasons, but it's a pretty loose term. Can also use enzymes or other alkaline things. With or without a marinade. Pass through oil or water, or just stir fry with a little extra oil.
No reasonable person would be confused by use of baking soda as an ingredient in cooked food (reasonable) vs the addition of baking soda after cooking as an adulterant.