SFSafariCorrespondingMacOSExtensionBundleIdentifier
A string bundle ID that identifies the corresponding content blocker extension or Safari web extension on macOS.
Discussion
To enable extension syncing for your iOS content blocker extension or Safari web extension, specify the bundle ID of the corresponding macOS content blocker extension or Safari web extension.
Only add this to your Info.plist if the bundle ID for your iOS app is different from the bundle ID for your macOS app.
For more information, see Syncing Safari web extensions across devices and platforms.