I know it's early but it feels like these variants really downplay the price difference between IAP and web. They are testing <i>different payment screens</i> too, they never simply measure "pay $69.99/year with IAP" against "pay $49.99/year on our website".
Data shows web paywalls convert 30-50% worse than IAP (RevenueCat/Stripe). Unless your LTV >$500, that attrition costs more than Apple's 30% cut.