Close App from Alt+Tab dialog in Windows 10 by Winaero.com
1. Press the Alt + Tab hotkeys together on the keyboard.
2. Hold the Alt tab. Now, press the Tab key to until you select the app you want to close.
3. Press the Del key to close the currently selected app.
4. You can now press the Tab key to switch to another app, and press the Del key close it.
More here: https://winaero.com/blog/close-app-fr...