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Yes, Alt+F4 does close the application (no more process). Clicking on the X closes the window and moves the icon to the system tray, effectively hiding the icon and making the icon on the task bar disappear (or if pinned seem like the application isn't running).

Anecdotally, I rarely use alt+f4 to close a window.

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Not sure about Discord, but for Teams and Slack, there is no difference between clicking the X button, hitting Alt+F4, or accessing the Window menu (hard to do) and selecting Close from there; which is not surprising, as Alt+F4 is the shortcut for the Close action, which is the equivalent of the X button by convention.

Discord does close the entire application on Alt-F4 instead of just the window, it's quite weird.

> Alt+F4 does close the application (no more process)

Alt+F4 never closed the application. Alt+F4 closes the window. That said, _some_ applications do close when their primary window is closed.

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