most newer lg oled work down to 20
False. LG Oled displays only cover the 40hz to 120hz.
That 20hz rhetoric nonsense is based on misinformation spread by popular website called Rtings whom doesn't seem to know the difference between LFC and VRR. Anything below 40hz is LFC and only works on displays that can go up to 120hz.
https://www.nvidia.com/en-us/geforce/products/g-sync-monitors/specs/
All PS5 Games run in 60hz display mode.(not to be confused with 30fps or 60fps) unless the game has a 120fps performance mode which triggers 120hz display if you have the 120hz OS toggle set to automatic. Otherwise, your TV display is putting out 60hz on ALL PS5 games.
The problem here is that PS5 version of VRR will NOT work on Elden Rings's quality mode setting because the fps is usually dipping below 40fps.
On Xbox, you can set all games to run under a 120hz display at system wide level which means all games have LFC support which keeps VRR working no matter how far the frame rate dips down to 20fps. Very few games on PS5 support framerates above 60fps which means the display is also locked to 60hz. The exception is rachet and clank rift apart.
I think this is real culprit on why Sony needs games to be patched for true VRR support. The PS5 can't do 4K, 120hz RGB 10-bit color due to the 32gbs hdmi 2.1 bandwidth limit. That's the bad news.
But here is the good news....the vast majority of PS5 Games have performance modes that maintain frames above 50fps. (Most HDMI 2.1 TV VRR range is actually 48 to 120hz. Not 40 to 120 like the LG oleds.) So framerate dips below 50 will knock off VRR. But that shouldn't be a problem because playstation version of games tend be better optimized vs games on other platforms such nintendo, Xbox, or PC.
Sorry for the long post. I want playstation users to know one last thing. If you truly care about VRR on PS5, check the VRR range before buying a TV. Make sure the range goes down to atleast 40hz or lower. That way LFC is unnecessary. I have seen decent number of games dip below 50fps but hold higher than 40fps. That is why LG Oled TVs are better for PS5 than Sony own branded TVs.
Hopefully in the future, newer TV have vrr ranges that go down to atleast 30hz.