The capability to present application content atop other applications is a system-level permission. When granted, an application can draw user interface elements that float on top of other running applications. A common example is a chat bubble that remains visible even when the user switches to a different application.
This functionality provides users with convenient access to information or controls without requiring them to switch between applications. Historically, this has been leveraged to improve multitasking and deliver real-time information overlays. However, its misuse can lead to security vulnerabilities or a degraded user experience. Therefore, careful management of this permission is essential.
