Is it true that in 2019.2, using Backbone.Router is not best practice? Can anyone confirm?

Hey @Kearobi, I think it was since 2019.1 that NetSuite changed routers for pageTypes or they built-in. You can notice the change in the core. Take a look at this article: https://developers.suitecommerce.com/page-types-and-page-layouts.html. You still can use router but you can take advantage the page types.

There it is! Thanks @eminero