If you haven't yet, we encourage you to begin work for the 64-bit requirement as soon as possible. Many apps are written entirely in non-native code (e.g. the Java programming language or Kotlin) and will not need code changes.
Got the same e-Mail. It's about delivering 32-bit apps to 64-bit devices (delivering also means "will show up in the play store when browsing it from a 64-bit device"). They also write
So I think you don't have to step into action for your CX written Android games, as also explained in the holy bible of coding knowledge