This is possible using Trakt. Add a movie or series to your watchlist, sonarr & Radarr sync from this list and add to jellyfin.
There’s also a plugin in jellyfin itself for Trakt that can report back to say when you’ve watched it I believe.
Chromecast 4k is my choice
Think the “Quality Definitions” section of the settings in Radarr is what you’re looking for.
Decent VPNs should be mostly unnoticeable
This is possible using Trakt. Add a movie or series to your watchlist, sonarr & Radarr sync from this list and add to jellyfin.
There’s also a plugin in jellyfin itself for Trakt that can report back to say when you’ve watched it I believe.