Side note on the Nvidia side of things.
Nvidia somehow messed up drivers years ago, which leads to stuttering even though not dropping any frames. This is also present in madVR…
In Plex HTPC (and probably Plex Desktop) this can be fixed by adding swapchain-depth=1 to the mpv.conf. This fixed it for me.
=> [HDR Metadata Passthrough] - Plex HTPC for Windows
At the end of the first post.
