We have an android app which we want to submit for review for the first time. However, the client doesn't want it to be released right away. On iTunes connect, there is an option to release the app manually once the app is approved.
How can we do the same thing or the Android store?
You can turn on Managed Publishing in the Play Console.
On your app, go to "Publishing Overview" > Click Manage on "Managed publishing status" > Select "Managed publishing on" > Click Save.
This will allow the changes to be reviewed without being published straight away. You will then be able to publish the changes in the "Publishing Overview" section.