I can't say it any better than Microsoft ( Windows Package Manager | Microsoft Learn😞
Windows Package Manager is a comprehensive package manager solution that consists of a command line tool (WinGet) and set of services for installing applications on Windows devices.
Windows Package Manager is a helpful tool for:
Package management hasn't been a strength of the Windows operating system since the beginning, but Windows Package Manager is a positive step forward. I have been pleasantly surprised by how many organizations are supporting it, and I would now say Esri stands out for not supporting it for ArcGIS Pro.