As part of the settlement antitrust authorities of the European Union related to the imposition of services in Android, Google for European users of the form to select the browser and search engine.
Forms that allow you to install alternative apps to Google services will be shown to users of new devices when they first launch Google Play and to existing users after receiving the next platform update. The 5 applications offered in the lists are selected based on popularity among users and are displayed in random order. If you select an alternative search engine, in addition to changes at the Android level, when you start Chrome, you will also be prompted to change the default search engine in the browser.
Source: opennet.ru