Plex App for LG only shows single plex server

I run my own plex server and have access to a friends plex server. On my TCL TV plex app, I can context switch between both servers, but when I am on my new LG OLED65B7P the app doesnt support this.

Looking at the LG Content Store, the Plex app shows it was last updated on 09/07/2016 and a version 2.1.0 which seems pretty old / outdated?

I’m also wondering if this may be a reason why my HEVC TrueHD 4k videos are also being transcoded to x264 AAC due to the plex app being old.

Also to clarify, I’m running the latest Plex server (Version 1.10.1.4602) running in Docker on Ubuntu 16.04
https://hub.docker.com/r/plexinc/pms-docker/