My first Mac was a TiBook, which I bought to install Yellow Dog Linux on. I switched to OSX at 10.1. I worked from 2001-2005 at a decent-sized network software firm in Ann Arbor. Within a year or so of arriving, much of the office had converted to Macs.
I don't think having a Mac in '05 made you too much of an outlier --- at least, not if you worked in technology. By 2005, Apple had already started the switch to Intel!
This would be nitpicking, except that the timeline matters here. It's not a 10 year gap, just by your own numbers. But it's not 12 years, either. It's more like 16.
Let's also remember that Linux has been an unreasonable mass-market desktop choice for a lot longer than 16 years. "The year of Linux on the desktop" is a nerd joke for a reason.