If you prefer using Microsoft's IDE, you can integrate this version using Qt VS Tools for VS 2013 and later.
Qt 5.15.2 open source download Windows 64-bit qtopensourcewindowsx865152exe top
Once installed, you may need to manually link the libraries in your IDE: If you prefer using Microsoft's IDE, you can
Always run Qt Creator as Administrator if you installed Qt in a protected folder (though installing in C:\Qt usually avoids this). If you prefer using Microsoft's IDE
This is the most important part. The installer does not install everything by default to save space. You must manually check the boxes for the kits you need.
You will need to create and sign in with a Qt Account during the setup process.