I wonder whether vab strives to support splitting the app into (potentially many) pieces of independent "bundle parts" (Android App Bundle "features" aka "modules") as described in https://medium.com/androiddevelopers/a-patchwork-plaid-monolith-to-modularized-app-60235d9f212e to achieve the "instant apps" functionality incl. so called "dynamic features" (i.e. basically views downloaded later on demand).
See https://www.youtube.com/watch?v=L9J2e5PYXNg for context.
And Android doc: https://developer.android.com/topic/google-play-instant/getting-started/instant-enabled-app-bundle