I'm not an Android dev, but isn't it nothing about privacy or remote control (apart from sending the notification) contrary to the reactions in the comments? A

I'm not an Android dev, but isn't it nothing about privacy or remote control (apart from sending the notification) contrary to the reactions in the comments? AFAIK, Android/iOS push notifications works quite independently from the app itself. Even if the app is not running in the background the app server can send a message to Google/Apple (not to Samsung) and Google/Apple send the message to the device to show the message. Correct me if I'm wrong.