It will be helpful if the number of AOs an application and its espace consume is displayed as a badge icon over the application/espace.
In Service Studio the total AOs could be displayed per espace when viewing the application's espaces as per this image:
In Service Studio when viewing all Applications, indicate it as below:
In LifeTime indicate it as below:
Here it will give a quick way of determining the AO impact when a deployment is to be done to the next environment.