The function allows a video to be displayed in a small, movable window that floats on top of other applications. For instance, a user can continue watching a video while simultaneously browsing the internet or composing an email. This feature is typically accessed through a browser extension, the native YouTube application on mobile devices, or within the operating system itself.
This functionality provides multitasking capabilities, enhancing user experience by enabling continuous content consumption without interrupting other activities. Its implementation has evolved over time, becoming increasingly integrated into both desktop and mobile operating systems, reflecting the growing demand for concurrent media viewing.