oc get csv -n openshift-numaresources
NAME                                    DISPLAY            VERSION               REPLACES   PHASE
metallb-operator.v4.13.0-202308071544   MetalLB Operator   4.13.0-202308071544              Succeeded
[I] kka@f-t14s ~/w/g/k/a/numa (dev ✔)> cat nro-sub.yaml
---
apiVersion: operators.coreos.com/v1
kind: Subscription
metadata:
  name: numaresources-operator
  namespace: openshift-numaresources
spec:
  channel: "4.13"
  name: numaresources-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace
[I] kka@f-t14s ~/w/g/k/a/numa (dev ✔)> oc apply -f nro-sub.yaml
error: resource mapping not found for name: "numaresources-operator" namespace: "openshift-numaresources" from "nro-sub.yaml": no matches for kind "Subscription" in version "operators.coreos.com/v1"
ensure CRDs are installed first


it works if 

apiVersion: operators.coreos.com/v1alpha1
 
(the alpha1)

1.
2.
3.