Apps like KeePass or PowerToys stay active in the tray to remain functional while being "invisible" on the main workspace. Technical Implementation
A (officially known as a notification area icon ) is a small graphical interface element located in the system tray—the area typically found on the far right of the Windows taskbar or the top menu bar on macOS and Linux. It serves as a persistent anchor for background processes, providing a way for users to interact with applications without keeping a window open. Core Purpose and Functionality tray icon