Agree Infuse is good and the new Plex integration makes it even better, but there are some limitiations currently such as no support to play music in the Plex library and no support for accounts in Plex, etc. I’m sure it will get better over time, but I’d say I still like the user interface of the Plex Apple TV app better than Infuse when it comes to playing media from a Plex library, but the back end of Infuse seems much more capable.
Issues I have with the Plex app on Apple TV:
-Sometimes when starting a video I just get the black screen with the spinning pin-wheel and the video never starts. I then have to go back (MENU on the Siri remote) and try to play the video again and then it starts playing immediately. Hasn’t happened in a while so maybe it has been fixed in a Plex Server update(?).
-I have a music track in the FLAC format which gets stuck a certain point every time during playback. Only happens in the Apple TV app and not when playing via my computer
or the Plex app on iOS. Correction: it happens in Plex on iOS too, but it’s fine on the computer (macOS) via Plex Media Player or Plexamp. Correction 2: it seems that particular FLAC file has problems when using Apple’s playback engine (QuickTime?), because it also happens on macOS for me if I use QuickLook in the Finder or QuickTime Player. Fine in VLC on the computer. So I guess Plex shouldn’t be blamed for this problem.
-Had some trouble once when changing the audio track for a movie, things just freaked out no audio was heard. Had to restart the Plex app (double-press the TV-button and swipe up on the Plex app to close it, then launch it again). This is also something that I think only has happened once, but still.
-I recognize the sound dropping out when ”direct playing”, but it’s also something that happens quite rarely for me.
Overall, the Plex app for Apple TV is not bad (for me), but a little rough around the edges.
One more thing I noticed recently (I’ve seen complaints about this elsewhere on this forums) is that the quality of photos viewed in Plex on Apple TV gets degraded compared to the original. Seems there’s no setting to change this behavior (i.e. let me view the original file).