: This refers to the Primary Internal Storage of your phone, specifically the "Download" folder. The "0" represents the main user profile.
: This is the "authority." It tells the Android system that Vivo's system Download Manager is the app responsible for providing this file to other apps. : This refers to the Primary Internal Storage
Each part of the URI provides specific information about where the file is and how it is being accessed: : This refers to the Primary Internal Storage