@Yash001 this is just general advice. on linux, to run commands as part of the installation is usually handled by postinst.src if deb based, or under %dir section (.spec file) if centos based distro, which are part of respective .rpm or .deb files.
I don't remember that it is possible to deselect Qt Creator from the online installer at all. So, I highly doubt that you don't have Qt Creator installed.
The default location is C:\Qt\Tools\QtCreator\bin\qtcreator.exe. However, it looks like you have changed C:\Qt to C:\Qt-framework.
Actually the Installer framework I used was customised i.e. the source code of the QTIFW was modified to suit the need and then the required QTIFW binaries are rebuilt from the modified source.