Clickbaity title on the original article, but I think this is the most important point to consider from it:
After getting to 1% in approximately 2011, it took about a decade to double that to 2%. The jump from 2% to 3% took just over two years, and 3% to 4% took less than a year.
Get the picture? The Linux desktop is growing, and it’s growing fast.
Omg there are so many of them out there already, even I just released one a couple of weeks ago: https://jeena.github.io/recoder/
Check out GNOME Circle for high profile apps: https://circle.gnome.org/ Or KDE Applications: https://apps.kde.org/ and so on.