FWIW, vulkan is not a GUI library; if you're reaching for it without a clear understanding of why you're doing so, yeah, it'll seem like a very complicated way of doing things.

Vulkan is a graphics API, not a UI library or framework. It's way lower level and if your goal is to make a user interface, you're not really supposed to do it with Vulkan (but you could i guess)

It’s Qt and pronounced ‘cute’.

https://en.wikipedia.org/wiki/Qt_(software)

Thats why I've always like pytk

    from tkinter import \*

    root = Tk()
    a = Label(root, text ="Hello World")
    a.pack()

    root.mainloop()