As a recent Android foldable phone owner (Google Pixel), I'm excited that the Duo will get developers to actually design apps for foldables. Right now, some apps don't work at all and others are just stretched. I feel a better use of the screen space is around the corner for both Android foldable and Duo users.
Instead, they just hand you some poorly documented loose parts in a box and tell you, “good luck” and you’re on your own to fill the gaps. Compose is a little better about giving the tools you need than the preceding Android Framework, but it’s still much more “assembly required” and “batteries not included” than the UIKit+SwiftUI world is.
Many iOS apps built using system components will behave 90%+ correctly on the Duo by just compiling against the iOS 27.1 SDK because there are well supported methods of doing things that Apple can leverage to reduce dev work. In contrast, on Android there's 10 ways of doing anything none of which get full-throated support (on top of all the other ways devs invent), and so any time it gains support for a new form factor almost nothing is automatic and it all falls on the devs’ shoulders.