THere is a way to show all records assigned to all groups a user is a member of.
See the following discussion:
Grab the zip file "All Requests and IPC for all my groups.zip" and use design transfer to import into the system.
Then copy this query and name it appropriately.
Then I would adjust the criteria to contain Status Contains "Awaiting Auth" AND Current Assignment.Group.Users.User is current user OR Current Assignment User is current user.
Then apply a report template to clean it up for the self service. Something like: