Ok, thanks for clarifying.
Regarding the Play Core duplicate error issue, you can use the script we shared over here .
Regarding the launch crash on API 34/Android 14 devices, surprisingly, I didn’t find anything wrong in the apk manifest which will stop launching on api 34. So, only left out option is to upgrade unity version which support API 34.
Adding the script shared above to avoid duplicate libraries related to play core should solve the issue. Please keep us posted.