I used some WinDev and WebDev at my last job. The tool isn't that bad, it's nice to have everything that just works from my IDE. On the other hand, I'm not a huge fan at all of using closed-source software. I also don't like using products for which the marketing is putting semi-nude women everywhere. Some people complained about that marketing aspect (https://www.jdp-pub.org/avis/windev-catalogue/) and they toned it down, so what's in that link is actually tame compared to what they did before.