WebCatalog Desktop lets you pin any app or space to the menu bar (macOS) or system tray (Windows) for quick access.
To attach an app or space to the menu bar (macOS) or system tray (Windows), open the app or space settings, navigate to the Appearance page, and enable "Attach window to menu bar" (macOS) or "Pin window to system tray (notification area)" (Windows).
The menu bar (macOS) is the horizontal bar at the top of your screen that shows icons for system and app functions. The system tray (Windows) is the area in the bottom-right corner of your screen next to the clock, where app icons appear for quick access.
System tray on Windows
ChatGPT, launched from the menu bar on macOS