Linux/Ubuntu local disk shows enormous space usage by PMS

[ChuckPa]

What will probably help you the most, due to all the sync’d content is to relocate the Plex Library
directory.

Easily done.

Here’s the How-To

Moving PMS 'Library'

Moving Plex’s metadata (Library) directory on systemd based systems This information is intended for those systems where cat /proc/1/comm returns systemd. If your system returns init, please see the next post in this thread. While you may change /lib/systemd/system/plexmediaserver.service, it is under the control of the package manager and subject to replacement without warning at any time during an update. To provide stability, systemd allows creation of an override.conf file to customiz…