ratsun81:The whole gsync/freesync problem of the past is no longer there. Nvidia GPU's now work with freesync as long as the display supports it. Think it was around 2018 when all this mess got cleared up.
So in short there really isint a benefit for g-sync displays anymore.
This reddit thread is a decent summary of the two displays.
To be clear, if you just want VRR then there are no issues with using freesync on nvidia via displayport or hdmi2.1 (hdmi2.0 is not supported).
The hardware g-sync modules do however conform to a higher testing standard so specs like HDR rating are guaranteed. There is mentions of lower input latency, larger VRR range and better (variable) overdrive, but if it’s not applicable (like overdrive since you’re getting an oled) then don’t worry about it.
There is a difference, the module does do something. $600 worth? Up to you.