(Adjust paths/names as needed. Exact volume names may vary; check Finder or hdiutil output.)
Developers often share scripts or direct links to ISOs specifically for VMs, like the Pyenb/macOS-ISOs project . 3. Security & Compatibility Warning macOS Catalina - App Store macOS Catalina App - App Store. Apple Apple macOS Catalina (10.15.7) - Internet Archive