If you are downloading the specifically for photo editing, prioritize the Display P3 profile over the legacy "Apple RGB."
Official Apple RGB profiles are usually built into macOS, but if you are missing them or need them for another system, you can often find them in bundled "repacks" or software archives. Locate Official Repacks : Third-party sites like apple rgb color profile download repack
Apple RGB expects a D65 white point. If your monitor’s hardware white point is different (e.g., 5000K), colors will shift. Calibrate your monitor to 6500K first. If you are downloading the specifically for photo