It should display source=Apple and Identifier=com.apple.InstallAssistant.Mojave .
On the technical side, Mojave introduced enhanced privacy protections, requiring apps to get explicit permission before accessing the camera or microphone. However, its most significant technical legacy is that it was the last version of macOS to support 32-bit applications Download Macos Mojave 10.14 0
: Mojave is the last version of macOS that supports 32-bit applications. If you need these apps, do not upgrade beyond Mojave. It should display source=Apple and Identifier=com