I am thinking of picking up the Shield TV mainly on the basis that for both Plex (or Kodi) it seems to play just about anything you can throw at it and as I have recently moved up to a 4K setup I have found that pretty much every other plex client I have struggles with 4K content.
Can the Shield really play everything though? I have read a couple of comments that it is not being able to direct play 4k MKVs in Plex. Further searches have not been able to confirm or deny this, anybody on here know if this is the case?
Where I am right now (other than considering ditching Plex for Kodi!) is that a server capable of transcoding 4k stuff when needed is likely to be significant (My 2015 MacBook pro does not even get close for example) so having clients capable of direct play or stream would seem a better option.