If I’m not mistaken, that 24 billion light years distance between two objects would be the sum total of their movement away from each other. That means they each moved, assuming both are moving at the speed they were since time began, 12 billion light years in those 13.8 billion years of time.
Or, the objects didn't move at all, but the underlaying spacetime between the objects has expanded. Kind of like objects orbiting the Earth aren't traveling in a circle, spacetime around the planet is curved. Objects are traveling in a straight line thru spacetime, which is curved.
That’s a good point. From one side of the circle to the other.