It's still pretty far away from catching up -- in fact, I think that now, in 2020, it's farther than it was in 2010.
Let's fucking hope so.
This article keeps measuring Linux by the classic Desktop measures of success. This article represents l-users. And ignores other forms of users.
The FOSS community has been trying to emulate the best parts of Windows' GUI for about twenty years now.
oh sure, some Freedesktop elements are trying to out-Desktop the Desktop. but most of the interesting folk are attracted to other ends & playing other games. ion3 or xmonad or other folk are doing very very little to "emulate the best parts of Windows."