Personally, I am a fan of FLOSS. What's not to like? But sometimes private companies compelled to compete in a free market produce better software. Seems to be especially true of consumer facing software. Think Gimp vs. Photoshop or Sketch.
Also, I don't think this is true anymore: "most got attracted to the platform for the advantages of its open and freely usable code". It used to be true, but I think Linux has wider appeal now. And I think that's a good thing.