Light sources in interiors can sometimes have their shadows missing during gameplay on PS5. Opening the director or character screen can bring them back but ideally, we should not have to do so as a workaround. These shadows can glitch in and out of existence as well.
I have also attached a link to some examples of this occuring, mostly in areas that I have not visited on PS5 before.
I do run the game with HDR enabled with an FoV of 85.