Run Editor after project browser closes in source builds

When you create a new project, Project browser will will close and open unreal editor and Visual Studio.
This is how it works In case if you install the engine from launcher.

But when compiled from source, and run the editor it will open project browser where you can create new project, and after you make a new project, browser will close, and only Visual Studio will open, but not the Editor.

Why is that, and how to make editor open automatically after creation of new project?

I observed that project creation will only create projects, but it will not compile anything. trying to run *.uproject file will ask you to compile modules first. so no wonder editor didn’t start?

Why does this happen with source builds?
Why does not project creation process compile generated code as well in addition to creating projects?