There is requirement for ODF Team on supporting below usecase which is related to volume snapshot feature.  
Here is the workflow:
Create a volumeSnapshot in Application namespace (ns1)
Wait for volumeSnapshotContent to be created automatically by either of the RBD/CephFS snapshot class.
Copy the snapshotHandle from the above volumeSnapshotContent and create a new volumeSnapshotContent in ns2 namespace.
Create a volumeSnapshot for the above volumeSnapshotContent.
Try to delete the volumeSnapshot and volumeSnapshotContent from ns2 namespace, Currently it is failing because of finalizers as ODF support only dynamic snapshots. We need support for static snapshots.