The PS5 has much better and ambitious games overall, but a foggy outlook of its future beyond 2023 due to Sony's lack of communication in regards to their first-party projects.
By comparison, the PS4 had Horizon: Zero Dawn, God of War, Marvel's Spider-Man, Death Stranding, Days Gone, Detroit: Become Human, Gran Turismo Sport and Gravity Rush 2 planned for 2017 and beyond. An exciting roadmap that the PS5 lacks at the moment, barring Marvel's Wolverine, Death Stranding 2, Rise of the Ronin, Star Wars: Knights of the Old Republic Remake, Concord and Fairgames - four of which we have only seen in CG form, with one of them also undergoing development issues.