The EU Commission likely deliberated more heavy-handed measures. Some of those discussions are available in publicly available documents.Instead, they made it so that the things Standard Oil were doing to restrict the creation and growth of other oil companies were ended, allowing the desired competition for the collection and distribution of oil.
The Google Play store exists as competition to the Apple App Store
If you use the Standard Oil example, what would that mean applied to Apple and Google? It means that you would have to unwind the vertical integration of these companies by breaking them up in a hardware division and a software division, and a services division, and possibly force them to sell some of those assets, and make the OS available to competitors. Then, and only then would there be real competition again and a chance for new competitors to emerge.
Now you don't need a lot of phantasy to see how difficult such an undertaking would be and how disruptive it would be for consumers and businesses.
I also don't agree, that the Apple and Google store compete against each other in a meaningful way. As an iPhone user you can't buy your app on the Google store and vice versa.
The “golden egg” is “new technology that challenges the status quo and drives adoption”. Because the EU and the UK have no leaders that understand, or have even worked to provide incentives to create and grow, companies that make devices and services that delight billions of folks, they believe the solution is to ”kill the goose”… stagnating tech in their regions by requiring competition to occur ON TOP OF OLD TECHNOLOGY.
Sounds great in theory. In the meantime thousands of companies have to rely on Apple and Google to reach their customers and provide services. Or do you expect a new music streaming service to first develop a whole new smartphone platform and OS, just to offer their services? It's completely unrealistic.