Lenovo is trying to streamline what a Windows laptop can look like in terms of screen real estate. One way that the company is doing that is by equipping the Yoga Slim 9i with an under-display camera — something we’ve really only seen in expensive Android phones. Under-display cameras are cool tech when they work well. It essentially sets you up with a camera that sits underneath the visible pixels on your device. The Galaxy Z Fold 6, for instance, utilizes this for the inner front-facing camera...