You will enjoy slightly faster speeds on your device when you hardwire them to a pod by Ethernet cable.
Connecting a device to a pod by Ethernet will not negatively impact your Plume WiFi performance. Plume also supports Ethernet backhaul, meaning you can now create networks with multiple gateways and pod-to-pod Ethernet connections!
Please note that you may need to power cycle the pod you have connected to your device for Plume to properly recognise and add it to your network.