I gave in and bought the UP970 again, just "screw it".
it's an august built, everything is fine.
I figure, with all the up-n-coming AV hardware and software standards looming around the horizon: ATSC 3.0, hdmi 2.1, Dolby AC-4, EARC, too much, just too much! I'll wait and upgrade my HT system again when the dust settles (lol, sigh...) and stick to my no-atmos-over-arc LG C6 for now. Maybe in a few weeks, there'll be that magical "dolby vision" sign popup on the upper right corner of my TV, but before that happens, I can still enjoy the 1st season of Westworld steelbook version in HDR10 and trueHD Atmos with the UP970. just gonna suck it up and buy a separate steaming device to get Netflix, probably a chromecast ultra. but, anyways, live is too short spent in waiting, I gave in.
LG OLED C6
Denon X4300h 5.1.4 setup
Sony UBP-X700 (no longer waiting for DV)