Perhaps but the present market share is the major issue i.e. many Linux users seem quite upset that they haven’t vanquished Microsoft.
Firefox gained converts by a) not being an MS product b) performing better and c) being open source AND being user friendly with a developer community that didn’t look down its nose at new arrivals.
The template is there waiting.
Personally, I couldn't care less about market share--in any product I buy. I buy for quality.
Quality is, I admit, largely in the eye of the consumer. It depends on what you're gonna do with the product. In the case of a computer OS, Linux works better for me than Windows does.