Officially, Apple provides macOS installation files through the Mac App Store or the official Apple website. These files are not ISOs but rather a .dmg file that contains an installer for macOS. The .dmg file is meant to be used on a Mac, where it can be easily accessed and used to create a bootable installer for macOS.
A "macos hackintosh iso" refers to an ISO image file that can be used to boot and install macOS on a non-Apple computer. Creating such an ISO from official sources is not straightforward because Apple does not provide an ISO file for macOS. Instead, enthusiasts often rely on third-party tools and guides to create a bootable USB or DVD from the official .dmg file.
However, third-party websites may offer pre-made ISO files or detailed guides on how to create a Hackintosh. These sources might provide an ISO file, but using it comes with risks. These risks include potential malware infections, compatibility issues, and, importantly, legal implications.