I am sure that the gameplay is not from PS5. The reason i say it is because the graphics, for example the structure of the stumps or the sharpness was as similar as the one it was in PS4 nets version. Even for nets in PS5, it was more polished. I don't think it will be a problem when the game comes out.
The pain point WITH IGN is that, they tend to just play the game as is. They have not used spinners in all of the 10 overs they played, not an unorthodox shot, didn't change the field, or do a challenging gameplay. This is what someone would look for in a cricket game and that's missed.
But, this is a good leap from BAS. Game looks shiny, smooth and simple. Replay looks very nice. Fielding is better (yes, for sure...as far as from the video). Six distance is ticking right but still some 103mts display when it just flew over crossing the edge of the boundry. Shots looks nice and I was wrong to day it was more of C19. They upgraded the shots.
I believe the graphics element is something they can fix if not fixed with day 1 patch but if this is how the game would look like on next gen consoles, they need to wake up.