We're having exactly the same situation, and I'm extremely interested to see the answer!!!!

App Store Connect Hello, We noticed one or more issues with a recent delivery for the following app: Version 24.3.4 Build 2.1.0 Please correct the following issues and upload a new binary to App Store Connect. ITMS-90291: Malformed Framework - The framework bundle FirebaseFirestoreInternal (------.app/Contents/Frameworks/FirebaseFirestoreInternal.framework) must contain a symbolic link 'FirebaseFirestoreInternal' -> 'Versions/Current/FirebaseFirestoreInternal'. Refer to the Anatomy of Framework Bundles for more information.