None of these are called "PCSX4." If a GitHub repo uses that name, it is almost certainly a scam or a renaming of an existing, non-functional project.
The actual progress in PS4 emulation is happening elsewhere, in transparent, open-source projects like , (for PS3), or . What’s Actually on GitHub? pcsx4 github
Repositories like DEngine-pcsx4 that might explore rendering backends or graphics cores but are far from being a playable console emulator. None of these are called "PCSX4