03.30.05 update (engineering channel) finally brings Dolby Vision 120Hz support for the LG CX. Apparently it works with Freesync enabled, as well. : r/OLED_Gaming
LG rolls out Dolby Vision 120Hz update for 2021 OLED TVs – later 2020 OLED (update) - FlatpanelsHD
LG CX OLED (OLED48CX6LB, OLED55CX6LA, OLED65CX6LA, OLED77CX6LA) review| Expert Reviews