Qt automatically opts into MSVC's <experimental/coroutine> ABI

LNK2038    mismatch detected for '_COROUTINE_ABI': value '1' doesn't match value '2' in ....obj    ...\Qt6Cored.lib(qlocale_win.cpp.obj)

Otherwise, you’ll have to downgrade your program to use pre-standardization coroutines. One way is to downgrade the entire program to C++17 with /await. But you may not want to throw away that much baby with the bathwater, since you’ll lose all the C++20 features. You can also use the /await switch in combination with /std:c++20 or /std:c++latest to say “I want pre-standardization coroutines” with as much of the newer language features as possible, provided they don’t create compatibility issues.

#include <winrt/Windows.System.Profile.h>
#include <winrt/Windows.Security.Cryptography.h>

#include <QtCore/QCoreApplication>
#include <winrt/Windows.System.Profile.h>
#include <winrt/Windows.Security.Cryptography.h>
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    return a.exec();
}