The greatest value Google Play allows for versionCode is 2100000000.
Version your app | Android Studio | Android Developers
SPLIT_BUNDLE = your aab file ( Android App Bundle)
SPLIT = Target device will download only necessary parts (for example, you have app with multiple languages, target device will only download these that are used on the device, not all)
So, there is no issue with WFS and versioning.
Tomas