[dkersten]

> Isn't that a JSON-like language?

It is (but its actually good!), but QtCreator also has a design tool to visually create QML-based UI's.

> I find describing UIs in text instead of "drawing" them like done in Lazarus to be going backwards.

This is a preference thing I guess - some people prefer visual design tools, some prefer text. I quite like QML's approach of giving me a simple declarative text description language and then providing me with a visual design tool to author it with if I prefer to do so.

> Most QtQuick programs i've seen look like something you'd see in a mobile phone or tablet instead of a normal desktop application

Early QtQuick was very much like this, but nowadays it has pretty good platform-style emulation (QtQuick Controls). How many applications use it, I don't know, especially nowadays that QtQuick has iOS and Android support. Also, since it gives you full styling freedom, I guess (for better or worse) many people make use of them rather than trying to look native. I've seen some very non-mobile style QtQuick applications too though, including desktop mail clients and such and they looked great.