One tidbit: video was juddering when running on Apple TV with Dolby Vision 4k, with Match Dynamic Range ON, and Match Frame Rate OFF. I just tried turning Matching Frame Rate to ON, and it currently works smoothly.
Note that Infuse was able to play the same file smoothly with the original settings (match dynamic range ON, match frame rate OFF). Ie, zero changes on the Apple TV, and the only difference was using Infuse.
