Yes mate the layout you gave is exactly the same I am using a 4K HDR certified hdmi 2.0 cables (one out of Shield TV into my AVR input, then hdmi out with the hdmi 2.0 cable into my Samsung 4K TV).
Also in the Plex webapp I noticed a section that said “Transcoder” there was an option where I disabled video transcoding in order to avoid any further confusion.
Also in the plex settings I disabled then hdmi pass through, my receiver’s OSD is giving me the “PCM” read out instead of the DTS HD MA 7.1 which I opted to run for this particular test. The movie i have chosen is Terminator: Dark Fate. Will post you logs if I find any stuttering.
EDIT: Despite I selected DTS HD MA 7.1 my receiver is showing the audio as 5.1 instead of a 7 channel audio. (HDMI pass through is disabled in Plex settings). Since I have a 7.1 setup, I disables the hdmi after roughly 25 mins of movie play. Let us see if it stutters from there.
