Difference between Action(arg) and Action.Invoke(arg)

static void Main()
{
    Action<string> myAction = SomeMethod;

    myAction("Hello World");
    myAction.Invoke("Hello World");
}

static void SomeMethod(string someString)
{
    Console.WriteLine(someString);
}

The output for the above is:

Hello World
Hello World

Now my question(s) is

• What is the difference between the two ways to call the Action, if any?

• Is one better than the other?

• When use which?

Thanks