Question Chrome Browser | Extensions | Not Embedded For Quick Access within the Browser itself?!

Yes, you need to go to Store, find the app you want added and then add the extension. If you've sync'd your profile on Chrome then the app will be downloaded automatically when the browser has chance to update itself with your credentials.

Why would Chrome Browser itself "NOT" have a embedded link in setting or something in menus anywhere to get a extension for its own tools?
That would be answered best by the people who made the browser, the devs.