It's not breaking news to say that your digital devices are listening to you. Most of us have experienced at some point having a conversation with somebody and moments later an ad or a news story related to what you talked about shows up on your phone or computer. Here's a way you can tell when your phone's microphone or camera (or both) is actively listening/watching.
When an orange dot appears in the top-right corner of your screen – right above your cellular bars – it means an app is using your iPhone's microphone... When a green dot appears this means an app is using either the camera or the camera with the microphone on your phone.
https://www.foxnews.com/tech/why-green-orange-dot-phone-indicate-someone-listening-watching