I currently have Plex and Radarr. I only ever got 1080p content because that’s all my tv would do. Finally getting a nice new tv and would like to get a few 4K hdr movies to watch. Should I be looking for Bluray2160, Remux, or disk and what will Plex play?
While I can’t directly help you, I do know that unless you have some insane rig, you’ll never be able to transcode 4k. Which means, the player is by far the most important.
I haven’t messed with it in some time, but for awhile everyone basically only recommended an Nvidia shield because it seemed to direct stream nearly everything.
Transcoding 4K isn’t as hard as you think. I used an i5-9500T and the iGPU could easily transcode ~80GB 4K Blu-ray rips at double real time speed. I’ve now switched to software transcoding on a 5800x and it also exceeds real time speed.