If you want to use Plex as a home theater setup, you might prefer the “classic” Plex Media Player. Plex Media Player is designed to be used from a TV. Download is currently only available in the respective release announcement thread.
The Plex for Windows player is targeted at users who run it simply as a desktop app.
The link below is pointing to Plex Media Player v2.54.0 which has been released <1 week ago:
Here’s a description of the supported shortcuts for Plex Media Player.
https://support.plex.tv/articles/208052807-controlling-the-app/
