It's a PS4/Xbox one game running in BC mode with NO specific XSX/PS5 upgrades other than an unlocked framerate, you can't buy a PS5/XSX version and there is no patch with specific upgrades for the new gen consoles. The release date doesn't mean a thing what matters is which platforms it was designed for.
That's Sonys fault for ignoring BC when they would have known not every game would get a PS5 version. Maybe stop trying to get people to double dip...