Think of the universe as a painting. There’s the image made in paint, and the surface it was painted on. The canvas.
The stars, the planets, the gasses, the matter and energy and even the space between are the paint. What’s the canvas? Is there a canvas? Would the canvas follow the same rules as the paint?
I don’t know. It’s seemed fine to me. :)
What’s simple to some people may not be as simple to others. That’s why this community exists.
This is more like a question someone who ate too many pot brownies asks. It’s not deep.