This is usually a BIOS issue.
Unlike generic tools like Etcher or TransMac, UniBeast 520 is specifically coded to inject essential bootloaders (Clover or OpenCore, depending on your selection) and the necessary kernel extensions (kexts) to allow non-Apple hardware to boot into macOS. unibeast 520
to install necessary drivers (kexts) for audio, networking, and graphics to make the system fully functional. or how to find newer alternatives like OpenCore? This is usually a BIOS issue