Installing Marketplace plugin to a UE Source build?

Hey, I know this is an old thread but I see your advice everywhere I look.
I have tried doing this and when my team members that don’t use Visual Studio try to open the project, they get this error:
Plugin ‘UnityVersionControl’ failed to load because module ‘UnityVersionControl’ could not be found. Please ensure the plugin is properly installed, otherwise consider disabling the plugin for this project.

Can someone tell me why that happens? It works when I open the project with Visual Studio.