I like the dual screens being able to show individual content or span an app across both (then turn it so the screens are running across the two screens instead of splitting them vertically).
The Microsoft launcher is nice and makes more sense like back a screen is swiping from the left or right sides. I don’t like the three gesture approach. The swipe up brings my apps running and I can choose to discard them or bring them up on either screen by moving the app to that screen.
Microsoft apps use both screens effectively with both screens. OneDrive drag and dropping an image to an app on the other screen is very useful.
There will be more once I get a chance to use it more