G-Sync works now on the Q70R after the latest TV update version 1391. Works in both 1440p 120hz mode and 4k 60hz mode both in HDR. : r/nvidia
Amazon.com: LG 43-Inch Class UR9000 Series Alexa Built-in 4K Smart TV (3840 x 2160) HDMI 60Hz Refresh Rate, AI-Powered 4K Sound Bar and Wireless Subwoofer S40Q - 2.1 Ch, 300 Watts Output,
Samsung Q70R (QE55Q70R) QLED TV review | Trusted Reviews