China would be a good example to predict what would happen. Since it bans Google, there are 11 Android app stores has >1% market share [1], most are from tech giants(e.g. Tencent), mobile operator(e.g. China Mobile) and phone manufacturers(e.g. Huawei). When Apple opens the gate for 3p App Store, it's safe to bet another 5~10 stores.
Maybe not every country will have as many app stores as China, but still that's gonna be a nightmare for developers (especially small developers) to manage.
Push notification might be another nightmare to watch out for consumers. When China bans Google service, app developers have freedom to implement push themselves or via a 3rd party vendor. And I guess if forced to open, Apple won't support non AppStore push either, hence consumers may end up with Facebook/Google/Epic/Tencent/YouNameWho have their push services running and connected on their phones with a burning battery.
Maybe not every country will have as many app stores as China, but still that's gonna be a nightmare for developers (especially small developers) to manage.
Push notification might be another nightmare to watch out for consumers. When China bans Google service, app developers have freedom to implement push themselves or via a 3rd party vendor. And I guess if forced to open, Apple won't support non AppStore push either, hence consumers may end up with Facebook/Google/Epic/Tencent/YouNameWho have their push services running and connected on their phones with a burning battery.
[1] https://www.statista.com/statistics/1058612/china-android-ap...