Yes, standard report is available for PR approval status list using T-code ME5A - List Display of Purchase Requisitions and the following input data's are given .
Purchasing Group : ___
Scope of List : ALV
Plant : _____ (if required)
- Assigned Purchase Requisitions to be ticked.
- Released Requisition Only to be ticked.
- Requisition for overall Release to be ticked.
- Requisition for Item-wise Release to be ticked.
Now execute the report and then report top layout button click for 'Release indicator' option selected for released status confirmation purpose. If release indicator status is 'X' means PR released, otherwise PR is not released.
Hope, it is useful for you.