If you are a company you should hire kdab to make their binding better, and maybe train you and whatever else they can do for you. There is a lot of friction between C++/QT (Which is very different from regular C++) and you will either spend your time fighting the friction of mixing languages, or you will hire someone else to worry about all those details while you focus on your problem.
Unfortunately for a long time they were the best arm distro for my pinebook pro. Though they can’t even support that anymore. I’m looking for a better option again.