Question I want to get Unity Hub 2.4.0. How Do I Do That?

How?

 

Do you want 2.4.0 specifically or any 2.4.X? https://unity3d.com/get-unity/download still has link for 2.4.6 .appimage download.

https://public-cdn.cloud.unity3d.com/hub/prod/UnityHub.AppImage


Sorry mixed up which forum catagories I am browsing and thought that this is a question in Linux subforum. Most likely you wanted it for windows In which case I can't help.