About notarizing: Give users even more confidence in your software by submitting it to Apple to be notarized. The service automatically scans your Developer ID

About notarizing: Give users even more confidence in your software by submitting it to Apple to be notarized. The service automatically scans your Developer ID-signed software and performs security checks. When it’s ready to export for distribution, a ticket is attached to your software to let Gatekeeper know it’s been notarized. So, on this page it reads: Mac software distributed outside the Mac App Store must be notarized by Apple in order to run on macOS Catalina What does this mean? Is this something that affects merely the default security setting?