Not sure exactly what folder you mean, but I literally have a 75 MB zip file (or rather, it's a .7z file, zipping would make it slightly larger). Unzipped its 700 MB though.
C:\Program Files (x86)\Microsoft Visual Studio\2019\{edition}\VC\Tools\MSVC\{version}Edit: I feel like this whole discussion highlights the issues with the vs installer though. If it wouldn't create hundreds of folders all over the place it would be much easier to have a sane discussion about it.