I already had trouble finding out where appSettings get stored when the app is installed in program files directory.
Now the next thing is finding out how to make the app installer update that location too. Because obviously, Microsoft Windows doesn't do it.
When the app is installed in program files and you try to update its settings file the setting file actually got saved to another location: C:\Users\user\AppData\Local\VirtualStore\Program Files (x86)\company\app
How to make Visual Studio Installer remove this file during installation?