Having two different processors for two different OS is definitely the right move. This isn't the first time the Windows-Android hybrid existed. However, neither Microsoft nor Google wanted to share the CPU for two different OS back then. This time, Lenovo made the smart move by putting a standalone Snapdragon mobile SoC inside the screen for Android OS.
As much as I love this laptop, the OLED screen is not my favourite. I'd take an IPS LCD panel all day long. Also, I'd love to see the ability to directly boot the Windows partition to a secondary display without having the screen attached like Raspberry's Pi 400 and Pi 500.