Here is how to force close the game without restarting your PC:
If your device is running Windows 11 and you are stuck in the game 'Nate Hand Gesture', press Win + Tab to open Task View. Right-click on the game and move it to a New Desktop. Once done, press Ctrl + Shift + Esc to open Task Manager on that new desktop, select the game, and click End Task. Now, the game can no longer stop you from closing it.