Sometimes if we do not pay attention to the helm release uninstallation order, like we removed one release which includes CRDs and then we try to remove a customized resource which does not have a reference or finalization, that means this resource will cause resource recycle stuck, in other words, the helm release stuck at “uninstalling” status.
There is a quick fix which can easily sort it out.
helm plugin install https://github.com/helm/helm-mapkubeapis
helm mapkubeapis RELEASE_NAME
helm del RELEASE_NAME
If this did not help, then delete secret for each version
helm hist releasename
kubectl get secrets
k delete secrets sh.helm.release.v1.name.VERSION-N
References
https://github.com/helm/helm/issues/11513#issuecomment-1461323751