Insomniac says that Marvel's Spider-Man: Miles Morales will have a 4K 60 fps mode. However, it will not run in this mode by default, and the additional performance could come at the price of visual fidelity. The game will likely run at 4K 30 fps out of the box.
https://www.notebookcheck.net/Marvel-s-Spider-Man-Miles-Morales-will-be-able-to-run-at-4K-60-fps-on-the-PlayStation-5-but-there-s-a-catch.482402.0.html