Parliament of South Korea passed a bill that requires Apple and Google to allow third-party payments within apps. This bill will require changes to App Store Review Guidelines allowing developers using any payment methods besides In-App Purchases.
Bill is yet to be signed by president.
MacRumors were able to get comments from Apple:
The Telecommunications Business Act will put users who purchase digital goods from other sources at risk of fraud, undermine their privacy protections, make it difficult to manage their purchases, and features like “Ask to Buy” and Parental Controls will become less effective. We believe user trust in App Store purchases will decrease as a result of this legislation — leading to fewer opportunities for the over 482,000 registered developers in Korea who have earned more than KRW8.55 trillion to date with Apple.Apple
Reference: South Korea Passes Bill Banning Apple From Requiring Developers to Use App Store In-App Purchase System, Pay up or get out: Apple’s options for South Korea’s App Store law, ★ Let’s Consider Some of the Implications of Third-Party Payment Processing for In-App Purchasing on iOS and Android
Developer:Business as usual.
QA engineer:Business as usual.
PM/DM:Monitor the situation, no active changes are recommended so far.