We are also changing how remote playback works for streaming personal media (that is, playback when not on the same local network as the server). The reality is that we need more resources to continue putting forth the best personal media experience, and as a result, we will no longer offer remote playback as a free feature. This—alongside the new Plex Pass pricing—will help provide those resources. This change will apply to the future release of our new Plex experience for mobile and other platforms.
Jellyfin is very versatile but a bit clunky. I have it set up for my parents on their Roku and it works well enough for them. I set it up for other family members on their WebOS TV but they don’t really use it. I used to use it with Roku as well, but had issues with some captions, Dolby Atmos and HDR. I finally broke down and got an Nvidia shield, which fixed all my problems since the developers focus on Android TV the most. I also have Plex, and it is easier to set up, looks more polished, but is less versatile.
Plex has pretty bad DV “support” as an example. AFAIK it will only play back dolby vision profiles that have the HDR10 compatibility mode or whatever. Any time I get an older DV file I have to play it through some Android TV app.