Install QT normaly, make shure to install it to the Path: C:\Qt otherwise you have to change the Qt path for every project you create from this template. C:\Qt is the default path. A build folder gets ...

I have installed the Qt 5.15.2 via Qt official installer, and it's at the root path of drive C. When I want to use vcpkg to install a library which depends on Qt, vcpkg will download and build qt-base ...