IvanСсылка
AFAIK this is a Qt for Python group, so you might not find a ton of folks here familiar with Qt in C++. I'm double-useless to you, since I'm not only a Python developer (with no especially useful knowledge of C++) but also I haven't touched Windows in well over a decade (Win7 was my last Windows). I do everything on Linux these days.
Just guessing, but I suspect there should be no real problems doing Qt6.2/C++ on Windows 11. As long as you know what you're doing re; both C++ and Qt6, it should be fine. I know I've had nothin' but good luck with Qt6 overall thus far on Linux, and it can't be much different on Windows I presume. Qt is designed to be cross-platform after all.