I ran into a similar issue and did not figure out how to share them.
I did come up with a workaround, I passed the settings as part of the url, then parsed them out in the service.
Thanks for pointing to that topic (I had skimmed it before but at that time I didn’t even have an up to date folder layout…).
Am I understanding it right - I move the Prefs to ServicePrefs.json and my Plugin will still be able to access them via Prefs?
One other thing… Why are the recent Plex API so out of sync with the plugin docu? It’s seriously no fun to poke around in the actual API implementation to learn how things work…