I don’t believe that there will ever be a full 1:1 mapping of all the Postman App features to the Postman CLI - In the same way that not all features were available in Newman.
There are mentions of several limitations throughout the learning center but there is no single page that lists them all.
The best person to provide more information about the Postman CLI would be @malvika-chaudhary, who is the Senior Product Manager for the Postman CLI.