Why are the apps in "/System/Volumes/Data/Applications" and "/Applications" the same in macOS Catalina?

Question

When I use MacOS Catalina (Public Beta) with Alfred 4, I find that all the Applications installed via the Apple App Store or brew cask are duplicated in the candidate list.

Any application in the /System/Volumes/Data/Applications will be mirrored in /Applications.

Does it work as design?

Answer 1

Type reload into Alfred. This will refresh the app cache for any apps that may no longer exist in the old location. Reference: https://www.alfredforum.com/topic/13121-duplicate-apps-in-results-1015-and-v4/