Does it make sense to use Ionic even if i don't need the UI elements?

Hello altogether,

I have a very basic question. Our team wants to create an interactive graphic novel as an app (and as desktop website) for a university main project. So, the app is more like a game and will have a custom UI.

As we don’t use the Ionic UI elements, would you consider it an overhead to build with Ionic?

Cheers,
Dennis