A95L-77 Denon Lip Sync Issues - Best path

New owner of a 77 inch A95L (gorgeous, gorgeous picture) and a new Denon X4800. This is replacing a Samsung LED panel and a Denon X3600, which never had perfect lip sync, but was. close enough. AppleTV 4k is the primary source. I have been messing around with the audio delay, but it's still not perfect and noticable differences between using YouTubeTV vs. watching a movie from the same AppleTV box. Seems like running directly from the ATV to the TV and then eARC back to the Denon sounds like the sure fire solution to solve it. Anything I miss out on, Dolby Atmos, DTS:X, etc? Any settings that should be off/on on either the TV or AVR?