In addition to MovieFan.Plex‘s point about this being an account setting (not a device option), there’s already an existing suggestion asking to set the audio preferences for your own managed users („on behalf of“). I suggest you comment/vote in that thread in order to avoid distracting/dispersing votes. That’s unless I’m completely missing a unique point from your suggestion.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Subtitles globally set for user account | 17 | 284 | April 7, 2020 | |
| Subtitle preferences per user (ie. 'Always on' for 1 user, 'Foreign audio only' for another) | 4 | 87 | June 10, 2021 | |
| Set default/change audio/subtitles for all (managed) users at once | 21 | 502 | August 21, 2022 | |
| [Feature Request] Per user language settings | 2 | 95 | July 1, 2018 | |
| Allow Each User to Change Language & Subtitle Defaults | 2 | 92 | November 6, 2018 |