Thank you for reaching out to Okta Support, my name is Andrei and I'll assist you with this question.
If you are referring to seeing what attributes, licenses and roles are assigned via Group Assignment, you can simply access the Groups tab/Assignments tab -> Groups of the application in question and click the Edit button next to the group.
Not all apps support this, however, and you may receive a notification that 'There are no user attributes that can be set at a group level'. In such cases, you can only view this information on a user-by-user basis.
If that was not the ask, then I recommend taking a look at the following KB Article regarding groups: https://help.okta.com/en/prod/Content/Topics/Directory/Directory_Groups.htm
Technical Support Engineer
Okta Global Customer Care