Remember the 10% market share in the 1990s did not cover all the related jobs across the planet.
And now with the demise of the workstation market, some studios have switched to Windows based workstations for their audio, graphics and visual effects gear instead of dealing with thunderbolt spaghetti.
In 1991 Apple then launched QuickTime and FireWire was codified as a standard by 1995. They literally defined the software and firmware which made digital editing possible on a workstation in the 90s.
Adobe Premiere was architected around Quicktime. Avid alone held an estimated 80%+ market share in the professional broadcast, TV, and film industry and was exclusively Apple until mid-95. That's not in the US, that's Globally.
Apple then launched Final Cut and ended up capturing 49% of the U.S. professional editing market by the mid-2000s.
Here's a fun read and personal chronology
https://www.cined.com/apple-at-50-the-company-that-made-me-a...
"Throughout the early 1990s, virtually all nonlinear editing happened on Macintosh"