Ionic app is not lazy loading, even with modules and all

I’ve created an Ionic app with a recent version of the CLI (that by default uses lazy loading).
I’ve created a lot of pages and some components with the CLI.

But when I check the network tab in Chrome, only 1 main.js gets loaded (which includes everything, I assume).
No extra pages are loaded when going to different pages.

Did I do something wrong or isn’t it enabled by default?