I've been carefully researching the options for replacing my 15 year old 1080p 60Hz VA panel. Personally I came to the conclusion that the whole concept of a 'gaming monitor' makes no sense any more in 2020, very specific niche cases notwithstanding. I ultimately went with a LG 48CX; 4k, 120Hz, 48", perfect HDR due to OLED, officially G-sync compatible + Freesync Premium Pro, 4xHDMI2.1 with 4:2:0 support for 120@4k under HDMI 2.0. And its even about the same price as the G9 despite a vastly superior picture quality.
I have no clue why anyone would pay >$1500 for a high refresh rate screen with a VA panel. The motion blurring already pretty much ruined screens like the ROG Swift PG43UQ which ran at 'only' 120Hz. Not even FALD will get a true HDR experience regardless of brightness levels; who cares if it is 'HDR 1000' if you get blooming, false blacks and raised gamma on parts of the srceen. :/
The G9 would have been awesome 2-3 years ago. Now it already seems mostly obsolete.