An open-source Android app that allows users to isolate other apps into a "work profile" for privacy and security.

While "piece" can sometimes refer to a (a "part" or "split archive"), it is most likely being used here to describe a specific game build or software package . Common Sources & Context

Or is this related to a different "piece" of media, such as a or art series titled Sheltered ?

: This tool is frequently used to manage "sheltered" apps in a sandbox environment and can be found on F-Droid . Which "Shelter"