This article explains how to play PS4 games on the PlayStation 5 and which games are not compatible with the PlayStation 5. The vast majority of PS4 games can be played on the PS5.
How to play PS4 games on PS5?
Playing a PS4 game on your PlayStation 5 is just as easy as playing a PS5 game on the system. Here's how to do it using the game hub:
Insert the PS4 game disc.
Select the game from the PlayStation 5 game hub.