@Feelthewind,
I was wondering about the same question.
More specifically, it seems that Nuxt.js apps need to be served by an http server, however cordova apps by default are loaded from the filesystem (using the file:// protocol). I added the ionic web-view to my cordova app, which serves the app instead of loading it from the filesystem and the Nuxt app I included in my cordova app worked with no issues.
However, because I don’t see other developers use Nuxt in cordova apps along with the ionic web-view, I feel a bit uneasy about building a large app on this architecture.