Customizing runAS user in Jenkins Helm Chart

Hello All,
We were able to install Jenkins in our Kubernetes cluster via Helm Chart and we are using persistent volumes.
The issue we are facing is with default jenkins user, by default the jenkins uid is set to 1000, but we already have another user with uid 1000.

Is there a way to change the runASUser and fsGroup to something else other than 1000?
I tried all the options in values.yaml but nothing works.

Any ideas or suggestions on how to

Option 1:
usePodSecurityContext: true
runAsUser: 4474
fsGroup: 24574

Option 2:
runAsUser: 4474
runAsNonRoot: true
#supplementalGroups: [24574]

Thank you.