"I bet that a gas stove has better heat transfer than 40%."
Multiple studies claim that gas stoves top out right at 40%, electric coil stoves hit about 70%, and induction units hit the high 80s.
But, that's only the "burner to pot to food" part of the efficiency spectrum.
The other end of it is the production end, and in that gas wins hands down.
I'd really like to have a gas stove, but it's simply not available in my community and I don't have anywhere to put gas bottles, so I deal with electric.
I've got a gas top stove and I like it, but it's weird cooking on it. It took me a LONG time to get used to how it functions, even if it is a lot easier to keep clean.
About 18 months ago I picked up an induction burner from Amazon.
Holy hell is that thing brilliant. Unbelievably fast to boil water and the precise temperature control that it gives me is fantastic.
When I replaced my stove back in 2016 I briefly considered a unit with a full induction cooktop... until I saw the price. Four to six times what my current stove cost. Nope.