If you've been using your Real-Debrid account outside of the RDTClient+Arrs symlink solution (say, with Debrid Media Manager, or Stremio), you'll have lots of content sitting in /storage/realdebrid-zurg/{movies,shows}
which is not symlinked to /storage/elfstorage
, and thus not sorted into libraries managed by Radarr / Sonarr.
You can work around this by adding additional folders to your Plex libraries, but it's counter-intuitive, and messy, and it can be especially hard to track watched vs unwatched TV episodes, etc.
For media which did arrive via the Aars / RDTClient, the symlink design feature of RDTClient is genius: you end up with a 2kb file instead of a 60GB file, which you can rename and move around your filesystem, sort into folders using the Aars, and delete and replace when an upgrade becomes available, etc.
We can now replicate the symlink design using ElfBot, to import all your existing Debrid content (not sourced via RDTClient) into Radarr / Sonarr for better organizing / managing!
For details, check out these pages: