Google Play Huge Update Size

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:bust_in_silhouette: Asked By Libroru

I’ve been testing the Google Play Dev Console for a couple of days now and I’ve noticed that when I push an update the APK size is huge.

I am currently making a basic UI game with 64x64 sprites and buttons.
Without using custom builds it takes up ~25MB, with custom builds it takes up ~60MB.

Google Play is also not recognizing it as an update when I export it as an AAB.
Updates are then about 30MB in size.

Am I missing something here?