Earlier quoted context omitted.
writing desktop UI is really difficult these days. I mean i'm not saying it used to be easier, but the amount of technologies you can use to write a web application or desktop/javascript application and easiness of creation is overwhelming, while the amount of GUI frameworks stays the same, while some of them are decaying (no new version for a long time). So we have objective-c/swift (new!) for macos, MFC for MSVC++,…
Hardly any different from going with C and C++, which could have been wrapped via CGO.
-- edit -- speaking of Qt