You are misusing the word callback. A callback is a function passed to another thread that will maybe be invoked later as a response (like it calls you back).
Even MDN uses the term callback to describe e.g. the argument to 'map': https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
In contrast, Lodash goes out of its way not to use the term "callback", presumably to avoid confusion since it's a place where many functions-that-take-a-function-argument do not call the provided function, e.g. https://lodash.com/docs/#curry