Set the "app_version" for Firebase Analytics

[ChromeQ]

I am using Expo to build a react native project. I am taking advantage of Expo Updates to push updates OTA. When an update is created it uses the app version (as found in the package.json) to target a "runtime version" - meaning this update will only work for binaries built with that version.

This is fine but when I create a new update on an existing runtime, I also create a new commit and tag incrementing the version as a minor or patch but importantly I cannot and do not update the "version" in the package.json as this would cause the created update to target a new (non-existent) binary runtime version. So I update another key on the package.json; confusingly called "appVersion".

I expose this appVersion as a variable to my code and I want to provide it to RNFB Analytics so that the app_version is set for analytics corectly.

As you can see, I have most users on version 3.0.0, despite having a release for v3.0.1 and I have tested this in debug view and my v3.0.1 is logging as a 3.0.0.

Is there a way to set the app_version manually? I have searched the repo but I cannot find the part which determines the app version.
Thanks

[ChromeQ]

Update: I have made changes to my project to always update the package.json version on every major, minor or patch update, and a manual string for the runtimeVersion to ensure expo updates are targeting the correct runtime.

However, even with this change I am not seeing logging in Firebase Analytics reflecting the updated package.json version.
As you can see, my app version is v4.0.1, runtime is v4.0.0.

But you can see the versions logged in Firebase Analytics still has no mention of 4.0.1 (merged and released since May 27):

The only thing I can think is that the app_version is "baked in" when building the binary and react-native-firebase/analytics is using this - which isn't always going to be the version when using Expo Updates or any other OTA updates.
Can you confirm if this is correct? And if so, I think it is fine to be the default, but can it be possible to expose a method to allow the developer tell the version to show as in Firestore Analytics?