From the European Commission press release:
The European Commission has fined Google €4.34 billion for breaching EU antitrust rules. Since 2011, Google has imposed illegal restrictions on Android device manufacturers and mobile network operators to cement its dominant position in general internet search
In particular, Google:
* has required manufacturers to pre-install the Google Search app and browser app (Chrome), as a condition for licensing Google's app store (the Play Store);
* made payments to certain large manufacturers and mobile network operators on condition that they exclusively pre-installed the Google Search app on their devices; and
* has prevented manufacturers wishing to pre-install Google apps from selling even a single smart mobile device running on alternative versions of Android that were not approved by Google (so-called "Android forks")
Good for the EU to stand up to Google.
This is the same thing that Microsoft pulled in the US with using its monopoly power to require Internet Explorer in every PC the 90s. That got them charged as a abusive monopoly.
Funny how history repeats itself…