How about explain it then instead of being mysterious?
I'm looking right at the side by side between X1X and Stadia.. there's no framerate counter or anything like that on screen.
And Eurogamer is using high speed cameras to detect the amount of frames in the feed... how would they be wrong?
If both are running 30fps then why does the stadia version look a LOT smoother. It does straight to tomb raider (confirmed to be 60) and it looks the same.