The left side (with " Seed File Edit View Window") is the application menu, which changes based on the active app (in this case, Seed).

The right side (with icons for Wi-Fi, Bluetooth, battery, time, etc.) is called the menu extras area or status menu.

The bar shown in this screenshot is called the application menu bar (or menu bar) within a Windows application window — specifically for apps built with frameworks like Electron.

Unlike macOS, where the menu bar is system-wide and always at the top of the screen, in Windows, the menu bar is part of the app window itself and typically appears just below the title bar. It includes entries like Seed, File, View, etc., which provide access to app-specific functions.