By default, it excludes system packages and Apple Store apps to prevent accidental damage to the OS.
Are you looking to from a specific app, or are you troubleshooting a failed installation ? Download UninstallPKG for Mac | MacUpdate UninstallPKG 1.1.5
For the latest features and security updates, it is highly recommended to use the official CoreCode Website or reputable mirrors like MacUpdate . By default, it excludes system packages and Apple
Modern versions now require macOS 10.14 'Mojave' or later. Where to Find It UninstallPKG 1.1.5