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.
Oh really I had the impression if you have a GPLv3 dependency in the same pack it could be interpreted as distributing it with your code.
Well thank TIL for me.
I know I am pointlessly late on this but…
You do not distribute the Flatpak runtime or Flatpak itself. You can depend on it but it is distributed separately. Flatpak may download these dependencies at the same time as your app bundle but it is not downloaded from you. And the libraries you are linking to (like Glibc) are LGPL or even more permissive.
If you put a GPL library into your application bundle, that could be a problem. But if your app is closed source, you are presumably not doing that.