Normally when I look at next.js sites, I see a div tag with id="__next" but here I don't. I've never used next.js so I have no idea if this is the new version o

Normally when I look at next.js sites, I see a div tag with id="__next" but here I don't. I've never used next.js so I have no idea if this is the new version or if you can customize the name of the root next.js id.