Value of this inside Proxy

I have following code

function delay(f, ms) {
    return new Proxy(f, {
        apply(target, thisArg, args) {
            console.log(this)
            console.log(thisArg)
            setTimeout(() => f.apply(thisArg, args), ms)
        }
    })
}

function sayHi(user) {
    alert(`Hello, ${user}!`);
}

sayHi = delay(sayHi, 3000);


let container = {
    f: sayHi
}

container.f("Paul")

Why is this inside apply function equal to {apply: f} and not to the container object.
This is the object before dot, isn’t it?