Multiple cybersecurity reports and community warnings from platforms like Reddit and Hacker News indicate that PCSX4 is not a functioning emulator.
: Downloads are locked behind "identity verification" surveys that never grant access to the actual file. PDIX Files pcsx4 compatibility list
While PCSX4 is a fake, several legitimate projects are making steady progress in emulating the PS4's x86-64 architecture. 1. shadPS4 pcsx4 compatibility list