We have already configured the VPA for many of our workloads (ExternalDNS, cert-manager, Prometheus and more). Today we also configured this for the metrics-server workload. This means that for those workloads we need less manual configuration changes when the cluster scales and therefore will result in a more stable cluster.
You can also make use of the features that the VPA provides. For that we wrote documentation on how to get started with this. If you want to know more or you want some help with getting it sorted, please reach out to us.