Admin/Key user has put access restriction on report Opportunity Details but end user is able to view all data and report has no access restriction.
For that business role/user, put read/write access as restriced for all views of the assigend work center wherever applicable.
Now login via end user who has been assigend to that business role so that he can see that report.
You will notice that report access context is No Restriction.
This is standard behavior as this is Banking Industry Specific report and It make sense for banking Customer to use this report (customer who has bought Banking Industry License) as this has banking data.
This report will be visible to everyone despite of scoping done or not as this report is not enabled for access control.