How to identify free trial subscription transaction

In the verifyReceipt API response, there is a "is_trial_period" field. As detailed in WWDC 2023 the verifyReceipt is deprecated, how to fetch the fact that the subscription is during the free trial period via recommended App Store server APIs?

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Both the JWSRenewalInfoDecodedPayload and JWSTransactionDecodedPayload have an offerType field, which if it is set to 1 means the transaction/renewal will be an Introductory offer, and a free trial is a kind of introductory offer.

But, is there no way to distinguish between a free trial and a paid, reduced price introductory period for a subscription? The verifyReceipt API provided separate is_in_intro_offer_period and is_trial_period, which allowed our server to distinguish between these types of purchases, and now I see no way to do that without relying on some external information (such as maintaining a separate configuration on our server for what product_id correspond to either a free trial or intro price.

Is there any way to distinguish between a free trial and a non-free introductory price period with the App Store Server API?

We need this as well, any updates on this?