Hey folks, is this comment from here still valid?

# Currently, an Argo Workflow can only execute entirely within a single
        # Kubernetes namespace. Multi-cluster / Multi-namespace execution is on the
        # deck for v3.4 release for Argo Workflows; beyond which point, we will be
        # able to support them natively.

Argo Workflow 3.4 has been out for some time now