Similar question about Bundle Name and Bundle Display Name have been asked, such as:
What's the difference between "bundle display name" and "bund
for iOS (not sure about macOS or watchOS)
CFBundleName - is the fallback if CFBundleDisplayName is not present in the info.plist. Moreover the CFBundleDisplayName is used by Siri.
If you localize CFBundleDisplayName, you must localize CFBundleDisplayName as well.
Here is the apple link for the same - https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html#//apple_ref/doc/uid/20001431-110725