Attached Devices show traffic uploads by application/protocol "OTHER"

When I check ATTACHED DEVICES I see upload traffic. This traffic seems to be moving from device to device and its not always a trickle but never above a full 1.34 Mbps.  Here our nest doorbell is uploading.  Nest support says the device always uses SSL or other encrypted traffic and if I reset the cable modem I see the doorbell establish the secure connection and do a massive upload using TLS/SSL to sync the video to the cloud.  I do not see a recent SSL upload here.   Does anyone know what this traffic is or what is classified as "OTHER"?

Here is an Alexa device that had been using some identified protocols but notice it has recently used "OTHER" as well.

Additonally how much data IS .34 - 1.84 Mbps anyway - I couldnt find anything on the web to give me an idea of what kind of load that is.