This is a Large Screen optimized behavior example project, based on the Unity 2D demonstration project Lost Crypt.
Supporting Large Screen and Foldable devices requires a number of changes to the Unity build options, as well as considerations in the layout of your camera and UI canvases.
To start, it's essential to implement support for various aspect ratios in your Android Large Screen application. This ensures your game or application appears correctly across different screen sizes. To do this, you should utilize the full screen resizable setting. You might consider adjusting the camera or canvas aspect ratio to better fit different screens. Settings in the example are viewed in the Build Settings, and in the Plugins\Android\AndroidManifest.xml file.
After ensuring that your game can adapt to different aspect ratios, the next step is to ensure your game can utilize the entire screen. This makes gameplay more immersive and can enhance the user experience. To achieve this, you should use anchors in your game's UI and camera settings to automatically adjust to the screen size. This allows UI elements to maintain their positions relative to the screen size. Examples of anchoring settings in the UI canvas are provided in the scene called Anchoring.
With the advent of foldable devices, it's beneficial to add support for these in your game. You can use Android's Jetpack WindowManager to detect the device's folding posture and adjust your game's layout accordingly. This project provides an example scene called HingeAware that contains a ConfigurationManager Monobehaviour and responds to the different folding states of the target device with UnityEvent callbacks.