Is creating and working in angular projects complicated (even at the beginning) or am I doing something wrong?

I know basic html, css, javascript, php, thats why I decided to learn a framework, and I chose angular. Does every project create / developing start with the following?

1. install Node.js - fortunately, one only has to install it once in their computer.
2. install npm - BUT it comes with node.js, so dont bother
3. npm install -g @angular/cli - takes a lot of time for me (maybe internet problem)
4. ng new new-project-name - takes a lot of time as well (I don't know why) AND makes the folder like 400 MB+ size.

And then, one can start working. Do the Angular developers do that every time to start a project? Do I have to do it WHILE developing (e.g. for deploying/testing or something like that)? And I did not even try to install/use tools like Grunt, Bower, Gulp (I don't really know those terms only the basics, I just heard about them while reading about angular).

So basically my question is what is the common and good "habit" to create and developing Angular projects? If an employer asks you to do an Angular project OR join an existing Angular project, what are your first steps?