You have to understand 1:√2. It’s not merely folding in half. The test is the folded half has to be the same ratio as the parent. It’s same ratio all the way down.
“The mathematical brilliance of A*”
“The mathematical brilliance of A*”
The sqrt(2) aspect ratio allows a portrait full app to be scaled up to the exactly to the folded out screen. But does anyone want that? You probably want to fit more content on the bigger screen, so some layout necessarily changes.