Yellow point

today I noticed that in the right corner, above the network, an orange dot appears (only when you go to the home screen), when you go to any application - it goes out, the curtain, widgets - similarly. During a conversation, an orange indicator appears near the bang itself, as a result, there are two dots on the initial screen. Does anyone know why it turns on on the home screen and how to turn it off? I searched the network, there is information only about the point when the microphone is turned on.