LG have now allowed 4K/120Hz at 4:2:0 chroma which was disallowed on the 2019 sets. That can fit in HDMI 2.0b's bandwidth. You have to wait for HDMI 2.1 GPUs to use full 4K120/4:4:4 or full RGB chroma.
This is a great move though as it allows the wait for HDMI 2.1 GPUs to not be as painful.
On top of that. 120 Hz BFI looks to be in. Anyone would have to be crazy to get a traditional expensive LCD "gaming monitor" over this beauty.
And 48" seems to take a bit of the edge off such a large display versus 55" for desktop use: