> But the premise is silly: if Linux has two native toolkits, how is this a sensible recommendation?? Hint: it isn’t, because GTK/Qt are not the native, but rather simply the most used.

I’m going to hazard the claim that in most people’s conception of the term, GTK is native in GNOME, Cinnamon, Xfce, etc. and Qt is native in KDE, LXQt and Sailfish OS.