Adding AAD extension to VMSS deployed for Azure K8s cluster

I find that the AAD extension for Azure VMSS is not working as intended. We tried executing the below command and we observe that it gets created but gets removed from our cluster in few minutes. So we were wondering whether AAD extension is supported for the VMSS for the cluster. Ours is a IaaS and not the managed AKS cluster.

az vmss identity assign --name myVMSS --resource-group MyRG

az vmss extension set --publisher Microsoft.Azure.ActiveDirectory --name AADSSHLoginForLinux --resource-group MyRG --vmss-name MyVMSS --subscription MySubscription

Start by reproducing the two supplied az vmss commands against an IaaS VMSS and observe whether the AADSSHLoginForLinux extension is removed after deployment. Review the VMSS and cluster reconciliation behavior; done means determining and documenting whether this extension is supported for this deployment model, or identifying the required implementation change.

Written by the indexing model from the issue text.