The good news is that genuine, dedicated development is happening. While a perfect PS4 emulator doesn't yet exist, there are legitimate open-source projects with active communities making real progress. Here are the primary projects to watch:
Legitimate emulators are currently struggling to run commercial games at stable framerates, making any claim of a "plug-and-play repack" that runs God of War or Bloodborne perfectly an outright lie. Real, Legitimate PS4 Emulation Projects pcsx4 github repack