Multi Arch Clusters

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I am having trouble tracking down a definitive answer to this question. Does Openshift 4.4 support clusters which include multiple processor architectures? (AMD, ARM, ppc, z, etc). Docker provides multiarchitecture images. As far as I can tell, Kube supports different worker nodes having different processor types. Even OCP 4.4 has NFD (Node Feature Discovery) and alludes to the capability of multiarchitecture builds with this functionality ( There is also the SRO which provides support for different hardware capabilities. But, nothing ever explicitly says that a single cluster can have multiple processor architectures in it.