@melbeher, As Comment 8, the backup msg in CEO are different between 4.10 and 4.11, is it work as expected? In my understanding, this is mino bug becasue the both backup files are created as expected. I may file a new bug if you plan to fix it.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.10.20 bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2022:5172