The true God stage was divided into three realms.
Early True God.
Mid-True God.
Peak True God.
After True God, the next stage is Elder God. The Goddesses and The Devil were at that level.
After the Elder God, the next stage is the most crucial and vital stage of signifying importance for the whole world.
The stage is known as the God King stage which is also called the Primordial God Stage.
Elder Gods can create realms but they are still bound by worldly laws. It's only when you reach the God King stage, you will be free of all worldly suppression of this universe.
The Queen Goddess is at the half-step God King stage. It's because of her presence due to the God Of Darkness had been playing hide and seek.