The reason I, and I assume many others, have less of a problem with that is that you can fairly easily still download and play fortnite without the Play Store. As far as I know that’s not an option on iOS outside of jailbreaking your phone.
It's App Store policy and payment handling within apps, not so much about being to install it. I don't like to see trillion new payment providers, I also don't like to see monopolies. It's a very long and big discussion.
But I do wonder, can and _would_ you do payments in a non store app with their own payment provider? E.g. the fortnite you have downloaded and installed outside of the play store?
The lawsuit is about app distribution on iOS as well as the 30% cut.
There won't be anymore than what the web already has. Stripe or Paypal would likely be popular choices. Payment processors are required by law to be PCI compliant, though that doesn't guarantee they are.
Yes I would do payments in a non app store app with their own payment provider if I felt I trusted the app. It's no different than paying on any website (there's no Apple review process for websites).
If you already downloaded if from outside the app store, why do you need to use an in-app payment provider?
At this point it's just like any software on your computer, you can pay outside of it, and use a code or similar to indicate you paid for it.
It's only a matter of convenience to want to pay in-app. It can also be a lock-in strategy from the developer - and this is what this whole thread is about.
We already do it over the internet, there are many players as payment gateway. To secure it, the payment systems need to improve and have proper notifications, 2FA etc. and not rely on benevolence and whims of the monopolies.
