I think Ming Chi Kuo is wrong. It's not a Macbook. It's a foldable iPad.

There is no world in which a foldable, all screen, touch screen Macbook makes sense.

macOS isn't designed for touch. A full screen keyboard is not how people who want to use Macbooks like to type. If you carry a non-foldable keyboard to use with the screen, it defeats most of the purpose of a foldable Macbook.

Meanwhile, iPadOS is touch and is designed to work without a physical keyboard.