How do I completely terminate the Windows application?

My cat tends to growl at the pc’s ringing for motion and doorbells. What do I need to kill on the PC to terminate the application when I don’t care about who is at the door? Or is there a way on just the PC version of the program to silently react?

You can turn off alerts on the Windows App page that shows the 3 dots/ live view.
Turn off the botton for ring alerts and/or motion alerts.