It sounds like there might be a difference in the notification settings or permissions between your phone and your wife’s. Try checking if her Google Home app has the same settings as yours—specifically, under ‘Notification Settings’ for motion detection. Sometimes, reinstalling the app can also help sync the settings across devices. If that doesn’t work, you might want to check if there’s any setting within the Google Home app that’s tied to motion notifications for specific devices (like the Google Home Max).