The overwhelming majority of the 4,000+ PS4 games are playable on PS5 consoles. Select PS4 games will benefit from the PS5 console's Game Boost, which may make PS4 games run with a higher or smoother frame rate.
Yes. More than 99 percent of the 4000+ games available on PS4 are playable on PS5. You can install PS4 games from disc* or download digital games purchased from PlayStation Store via your game library.