Upgrading to the latest Nuxt version (v4.3.1) shows a console error in dev:
GET http://localhost:3001/_nuxt/vuetify/styles net::ERR_ABORTED 404 (Not Found)

From what I can tell, everything seems to be working, but it'd be nice not to see this error.