I don't know. Take QT for example, I'm happy to risk blowing my leg off with c++ just because I feel really productive with Qt, it truly is a wonderfully productive library, and the external ecosystem is supportive, whatever complex visualisation I want to draw, I can often find a lib that's happy to draw into a qpixmap - c++ on its own or with boost etc. doesn't leave me feeling as productive.

GTK feels drawn out to me in comparison.

I tried python and c. Both were horrid.