Those three apps are often installed by default in the most of android systems. They can be easily removed with adb. But what they do exactly? What type of data they collect and send online?
Those are system apps in the OnePlus new devices but there are even in other devices like Xiaomi, Redmi, Oppo, Motorola and even some Samsung devices. You can remove those app with adb but I'm curious to know what they do exactly. In most devices they are hidden but you can see in your phone using AppManager from fdroid or using adb itself.