I don't disagree with you. I believe I wasn't very clear about my view.

Swift is great yes, a very decent language and as you said also made to take UIs into consideration and I've nothing against it. Now, when people do projects like this it usually comes from a place of need, of not being very happy with the current toolset and/or the belief that something could be made better. This project, besides being a student project, must have some roots into that as well.

I'm happy there are Swift bindings available but it really just proves what I said earlier - people feel the need to experiment with other things because their current Qt toolset might not be enough or provide a great experience.

but there are also options in the Windows world. Everybody isn’t using what Microsoft uses and even Microsoft doesn’t use the same UI toolkit everywhere.

Yes... but we all know there's a LOT more fragmentation in the Linux space. Qt is probably the most cohesive and ecosystem-like way to develop desktop Linux applications but once again it's not like what we have on Apple and Microsoft. Both of those companies provide at least one complete development ecosystem that is very tightly integrated with their systems and one can pick up learn and be very productive with it and unfortunately under Linux we things a bit more scattered around.