I recently bought a Synology DS216play for it's transcoding capability as my 2013 LG 'Smart' TV cannot play HEVC/H265
Turns out the Synology Media Server is a useless buggy PoS, so I installed Plex Media Server on my NAS only to find that Plex cannot use the DS216play's hardware transcoding.
So please please enable hardware transcoding for Plex Media Server running on Synology DS216play !! Thanks