For the context of a restaurant they absolutely use indoor gas grills. Cast iron is a good use case for an induction. But if you are trying to cook something d

For the context of a restaurant they absolutely use indoor gas grills. Cast iron is a good use case for an induction. But if you are trying to cook something delicate where you need really precise on/off temperature control (like a hollandaise sauce) it's almost IMPOSSIBLE to get it right with an induction top (for a pan to work on induction it needs to retain a lot of heat). A wok stir fry is another example - a thin metal pan that you need to work the crap out of is a really bad time on electric.