I was really surprised when I went and wanted to build a GUI app to find that everyone had abandoned the WYSIWG model completely. You can't just drag your controls over, set their properties, then build the code to drive everything. You have to manually wrestle with containers and whatnot even for desktop things. I could potentially see it as an acceptable tradeoff for wide device compatibility (things with substantially different screen dimensions, etc)... but I still have yet to figure out why the layout systems of the past couldn't simply be made a little bit smart to deduce the constraints necessary to result in the same development experience as before.