You are mixing apples with oranges and pairs.
Your question simply makes very little sense.
I noticed that there is no specific driver for usb3 vision as a whole for any platform(windows or linux).
What do you mean?
Can you elaborate, maybe with an example?

In such case one has to build a driver or work on available kernel pieces(if any) for usb3 camera video capture and streaming.
Or use a camera which manufacturer delivers a driver for the OS you are intending to use it on.
You could try and reverse engineer the driver of course, but do you really want to just so you could use the camera??

I want to know the scope of integrating these custom drivers being developed with QT framework so that a GUI based control application is built.
A device driver is software allowing a device to function with the host OS.
It has nothing to do with Qt, nor is there any place for "integration" of such a driver with Qt in the sense your are writing about.