Fairly new to shopify, just testing out some stuff on the impulse theme. When I was playing around with some ideas I realized that it seemed like it was just the homepage that had a bunch of customization options, while adding "pages" didn't give the freedom the home screens did.
Is there a way that one of the navigation buttons can link to an entirely different "home page"?
The way sections work in the homepage (dynamic sections) is unique to the homepage. So no, a second homepage with the same functionality cannot be created.
Shopify is working on a release which will allow dynamic sections in all pages, but this is still in beta. Not sure when this will be releases