It is not be able to update the VSC with this error
Failed to create snapshot: failed to add VolumeSnapshotBeingCreated annotation on the content snapcontent-96a3ac4a-a593-494c-9684-f747af62353f: "snapshot controller failed to update snapcontent-96a3ac4a-a593-494c-9684-f747af62353f on API server: volumesnapshotcontents.snapshot.storage.k8s.io \"snapcontent-96a3ac4a-a593-494c-9684-f747af62353f\" is forbidden: User \"system:serviceaccount:kube-system:synology-csi-snapshotter\" cannot patch resource \"volumesnapshotcontents\" in API group \"snapshot.storage.k8s.io\" at the cluster scope"
It is not be able to update the VSC with this error
Also correct the default annotation for snapshot class https://kubernetes.io/docs/concepts/storage/volume-snapshot-classes/#the-volumesnapshotclass-resource