More specifically, the screenshot with the HTC One M9 with Android 6.0 Marshmallow. It tells that the user can use third party widgets and services on your device and not only pre-installed.
According to the decision of the FAS that Google is now obliged to inform the user that not only branded services and applications maybe to use on devices with Android. And here some readers of the site "Roy!" has already reported that similar notices began to appear in the system, at least on the devices of HTC.