The phrase "Work Download Unlocks Hub IPSW iOS" likely refers to a feature or capability that allows employees or authorized individuals within Apple to download and access Hub IPSW files for internal testing and development purposes.
(e.g., iPhone 14 Pro, iPad Air 5th Gen)
An IPSW file is the file format used by Apple for installing firmware on iPhones, iPads, and iPod Touch devices. It acts as a comprehensive "system image" containing the entire iOS operating system.
Plug your iPhone or iPad into your computer.