The thing is that Zoom isn't installing the package either! If you look at the list of installed pkgs after installing Zoom there is no Zoom package. They are

The thing is that Zoom isn't installing the package either! If you look at the list of installed pkgs after installing Zoom there is no Zoom package. They are using a .pkg only for the side effect of running a pre installation script that simply copies Zoom.app in the /Application directory. That is to a software develper garbage, why doing so, when all other macOS application require the user a single drag and drop? Sure, that is probably not malware, but is a very poor practice, gives the user a bad experience, for no reason. These are the things that let's you wonder if the installation is managed in such a poor way how is the rest of the infrastructure.