Tested bug in the way below using the build below and i see that the podswithlocalstorage gets evicted and podswithpvcs do not.

[knarra@knarra cucushift]$ oc get csv -n openshift-kube-descheduler-operator
NAME                                                DISPLAY                     VERSION              REPLACES   PHASE
clusterkubedescheduleroperator.4.9.0-202108210926   Kube Descheduler Operator   4.9.0-202108210926              Succeeded

[knarra@knarra cucushift]$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.9.0-0.nightly-2021-08-22-070405   True        False         8h      Cluster version is 4.9.0-0.nightly-2021-08-22-070405


Test steps:
============
1) Install 4.9 cluster
2) Install descheduler
3) Enable ToplogyAndDuplicates,EvictPodsWithLocalStorage,DoNotEvictPodsWithPVC
4) create a new project with name test and run the command below
oc adm policy add-scc-to-user privileged -z default -n <project_name>
5) oc debug node/<worker> and create a directory /mnt/data1, create file called index.html inside the /mnt/data1 dir with some contents
5) create podswithlocalstorage with the yaml below 
[knarra@knarra cucushift]$ cat /tmp/rc1.yaml 
apiVersion: v1
kind: ReplicationController
metadata:
  name: knarra
spec:
  replicas: 2
  selector:
    app: sise
  template:
    metadata:
      name: somename
      labels:
        app: sise
    spec:
      containers:
      - name: sise
        image: quay.io/openshifttest/hello-openshift@sha256:aaea76ff622d2f8bcb32e538e7b3cd0ef6d291953f3e7c9f556c1ba5baf47e2e
        ports:
        - containerPort: 9876
      volumeMounts:
        - mountPath: /tmp
          name: task-pv-storage
      volumes:
        - name: task-pv-storage
          hostPath:
            path: /mnt/data1
            type: Directory
6) oc debug node/<worker_node> and create /mnt/data dir, create a file inside the dir and add some contents to it.
7) Now create pods with pvc using the yaml file below.
[knarra@knarra cucushift]$ cat /tmp/rc.yaml 
apiVersion: v1
kind: ReplicationController
metadata:
  name: rcex
spec:
  replicas: 6
  selector:
    app: sise
  template:
    metadata:
      name: somename
      labels:
        app: sise
    spec:
      containers:
      - name: sise
        image: quay.io/openshifttest/hello-openshift@sha256:aaea76ff622d2f8bcb32e538e7b3cd0ef6d291953f3e7c9f556c1ba5baf47e2e
        ports:
        - containerPort: 9876
      volumeMounts:
        - mountPath: /data
          name: hostpath-privileged
      volumes:
        - name: hostpath-privileged
          persistentVolumeClaim:
            claimName: task-pv-claim
8) Run descheduler & verify that pods with localstorage are only evicted and podswithpvc are not evicted.
I0823 15:24:15.325623       1 evictions.go:130] "Evicted pod" pod="knarra1/knarra-dtmfh" reason="RemoveDuplicatePods"
I0823 15:24:15.336810       1 evictions.go:130] "Evicted pod" pod="wduan/knarra-fx227" reason="RemoveDuplicatePods"

Based on the above moving bug to verified state.

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 (Moderate: OpenShift Container Platform 4.9.0 bug fix and security 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/RHSA-2021:3759