It may have changed since I last gave it a shot previously one annoyance I had with Qt was binary distribution. Getting it all packaged up correctly for each platform is much less than straightforward and if your app isn’t FOSS it’s exacerbated by LGPL linking requirements. It should really be a simple, single button process.

> Getting it all packaged up correctly for each platform is much less than straightforward and if your app isn’t FOSS it’s exacerbated by LGPL linking requirements.

Electron also has LGPL dependencies (Blink, FFMPEG) and libui depends on GTK which is also under LGPL so...

There is no LGPL linking requirements if you buy Qt commercial license.

There is also gtkmm

Not sure why I've been downvoted. What is wrong with gtkmm? It's a reasonable C++ binding to GTK+