I am developing a site, seo optimization and speed are important for the customer, they chose Nextjs (App routing). Now comes the important task of adding Critical CSS, but I found a discussion on the forum that in Nextjs 14 it is not possible to do this with application routing.
Is it really such a problem these days that it's impossible to do Critical CSS with Nextjs?
Missing critical css will be very critical for the first rendering of the pages? How can this be resolved?