The answer lies in the of the web. While NCSA Mosaic was free for universities, a company called Spyglass, Inc. licensed the technology. They sold commercial versions of Mosaic for Windows and Macintosh (Spyglass Mosaic). Furthermore, early Linux distributions often required payment for the CD-ROM media.
Linus Torvalds’ open-source operating system kernel was, in the early 90s, a hacker’s playground. Distributions like Slackware (1993) and Debian (1993) were emerging, but Linux was still a text-heavy, command-line driven environment. Getting graphical interfaces to work required arcane knowledge of X11 configuration. Mosaic Linux-Razor1911
Razor1911 says: Greetings to all old school web surfers. Stay wild. The answer lies in the of the web
It was almost certainly a bootleg CD compilation designed to distribute NCSA Mosaic binaries for Linux systems at a time when downloading a 5MB file over a 14.4k modem took an hour. They sold commercial versions of Mosaic for Windows
In the mid-90s, commercial Linux distributions (like SUSE or Red Hat, which started in 1993 and 1995 respectively) were sold in boxed sets costing $50–$100. However, Razor1911 and similar groups released "rips" or "compilations" of essential internet software.