Abstract: A foldable computing device can be configured to provide a user interface (UI) optimization that enables an application window to be presented in a predictable location when an application is launched, a UI optimization that enables an application window to be moved to an active display area, a UI optimization that enables a modal UI element to be presented in such a way that it does not overlap a seam on the device, a UI optimization that enables an image presented by the device to be adjusted to maintain a view of the focal point of the image across device posture or orientation changes, a UI optimization that enables the device to transition between UI modes optimized for front-facing and world-facing image capture, and/or a UI optimization that enables the device to provide a UI for instructing a user to flip the device when a biometric sensor is in use.