Induction stoves powered by natural gas power plants are more efficient than directly cooking with natural gas plus you can use clean solar/wind/nuclear/hydropower or oddballs like geothermal.
For most things which would need cooked on a hob for a long time we use an Instapot electric pressure cooker anyway (out of preference rather than efficiency concern).
At an optimistic 40% efficiency for a stovetop vs 90% for an induction cooktop the breakeven is 25c/kWh which is well above average US electricity prices. Worse that 40% assumes properly sized cookware in contact with the burner, no pilot light, and ignores the cost of venting air outside.
As to total costs, at full blast a propane burner only costs around 1$/hour but some people do a lot of cooking.