No you will have to do the project in the fcc page, you can copy/paste the code from codepen
Not exactly, there is a new curriculum, and the old curriculum is still there in the curriculum page. To see the old curriculum just scroll down the curriculum page to go down to the Legacy Responsive Web design course
You can look at this post for more info:
https://forum.freecodecamp.org/t/responsive-web-design-updates/508345?u=cryptic_x