Is React Native Analytics missing Item fields for GA4?

[twocs]

Not an answer but a question. Item needs extra fields for logging, particularly for Purchase and Begin Checkout.

https://pub.dev/documentation/firebase_analytics_platform_interface/latest/firebase_analytics_platform_interface/AnalyticsEventItem-class.html
https://rnfirebase.io/reference/analytics/item

Am I missing something, or is rnfirebase analytics just missing half the fields? Is it still built for Universal Analytics when everyone knows it's gone for good by July? These are the specs for Item, and the difference for RNFirebase Item:

AnalyticsEventItem	RNFirebase Item
affiliation
coupon
creativeName
creativeSlot
currency
discount
hashCode
index
itemBrand	itemBrand
itemCategory	itemCategory
itemCategory2	itemCategory2
itemCategory3	itemCategory3
itemCategory4	itemCategory4
itemCategory5	itemCategory5
itemId	itemId
itemListId	itemListId
itemListName	itemListName
itemName	itemName
itemVariant	itemVariant
locationId
price	price
promotionId
promotionName
quantity	quantity