What free market? It's a duopoly.
Instead of choosing that product, many people here complain that the other company doesn’t give them what they want.
Forcing Apple to change their financial incentives would likely make them look to the value of tracking, fingerprinting and privacy violations too.
it is not like these 2 products were identical except for sideloading.
They don't have the same hardware, Apple has an unlimited ad budget, if you want to chat with somebody using iMessages, you are pretty much limited to iOS, you can't transfer app purchases between platforms, etc
Same thing with Google, they cross promote their own new properties everywhere in Gmail (left pane) and Google.com but no one else has access to those locations, they can destroy thousands of small business through this practice.
In particular with Play Music .. not going to complain, I don't think that this market needs another FAANG product but wow, failing to promote that service is one epic blunder.