How to collect network traffic per process?

I’m using InfluxDB2 with Telegraf on Ubuntu 20.04 and I have network traffic (bytes in/out) already in a graph, but I’d like to be able to query traffic per process (e.g. how much bandwidth did Plex use, or nginx, etc.). Does this come out of the box with the system telegraf plugin, or is there another one I should look into? Although most of my traffic is plex, I wanted to check per-process just to verify as when I summed the bytes out over a 5s window the value seemed impossibly high, so I’d like to verify by checking per process. On a related note, is there a way to divide the value that’s show for graph + single stat (in the case of bytes_out divide so it comes in Mb or Gb)?