On Multiarch ocp There are two kinds of `Subscription`, see the attached snapshot:

operators.coresos.com/v1alpha1
apps.open-cluster-management.io/v1.

But on a single arch (eg. IBM Z or x86 only ) ocp, there is only one kind of subscription:

operators.coresos.com/v1alpha1

The cmd `oc get subscription -A` returns empty on a multiarch ocp, but it returns installed operator on the normal ocp.
This is the root reason of a few cases failed related to `subscription` mentioned in Openshift GitOps operator testing https://issues.redhat.com/browse/GITOPS-4044.

Also the cmd `oc get sub -A` works on both multiarch and normal ocps.