Qt is like Boost and .Net a general purpose framework; it is also very useful on the server side or with command line applications. Qt Widgets is only one of many modules. Btw. you seem to mix up .Net with the virtual execution system (VES) and its common intermediate language (CIL). Have a look at the standard (ISO 23271) part I; you can download it for free from https://standards.iso.org/ittf/PubliclyAvailableStandards/c0.... There is an additional technical report for the framework (ISO 23272), which can be downloaded from https://standards.iso.org/ittf/PubliclyAvailableStandards/c0....
I know you're making a joke, but the article says:
> In particular questions around the differences between .NET, .NET Core, Mono, Xamarin, and the relation between C#, F#, VB.NET and what a target framework or a runtime is add very little to almost no benefit to one's initial learning experience.
So, I assume they primarily mean the particular set of libraries being used