I was interviewing student devs recently and was flabbergasted how many of the kids doing greenfield personal projects were still using WinForms. It's frustrating how Visual Studio pushes them to work with this bone-headed warty out-of-date technology. These weren't old hands using somethign familiar just to get an MVP for a personal project, these were kids who didn't know any existing GUI frameworks and started using WinForms because it's the default in VS.