When running the nextjs demo app, the console shows this warning:
Do not add stylesheets using next/head (see <link rel="stylesheet"> tag with href="//fonts.googleapis.com/css2?family=Rubik:wght@400&display=swap"). Use Document instead.
See more info here: https://nextjs.org/docs/messages/no-stylesheets-in-head-component
When running the nextjs demo app, the console shows this warning: