In Google Play Console I came across
App size savings using the Android App Bundle-
Your app could be 38.4% smaller if you used the Andro
As stated by Hakiza, above, the command line is the best bet currently to build an Android App Bundle (aab). The only item I would add is to include the command switch for actually generating the bundle. Add the following command switch to the msbuild command: -p:AndroidPackageFormat=aab.
So, the entire command line would be:
=> msbuild -restore XamAndroidApp.csproj -t:SignAndroidPackage -p:Configuration=Release -p:AndroidKeyStore=True -p:AndroidSigningKeyStore=filename.keystore -p:AndroidSigningStorePass=password -p:AndroidSigningKeyAlias=keyAlias -p:AndroidSigningKeyPass=password -p:AndroidPackageFormat=aab