p7zip-desktop is a graphical user interface (GUI) for the open-source file archiver 7-Zip, which is designed to compress and decompress files. It is an open-source project and is available for free on various operating systems, including Windows, Linux, and macOS.

p7zip-desktop provides a user-friendly interface for working with 7-Zip, allowing users to compress and extract files using a variety of compression algorithms such as LZMA, LZMA2, and PPMD. The program supports a wide range of file formats, including 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM, among others.

With p7zip-desktop, users can create and extract archives, view the contents of an archive, and modify or update existing archives. The program also supports password protection and encryption for added security. And this is for users who want to work with 7-Zip archives in a graphical user interface, rather than using the command-line interface provided by the 7-Zip program.

p7zip or p7zip-desktop by default do not show any other files in other mounted drives or outside home directories. This can be fixed by using simple command below,

snap connect p7zip-desktop: removable-media

After this you can start the p7zip-desktop utitlity asusual through command line as follows: