How can I return to the normal way to scroll through and view models?

I do not care for models to be broken up into categories, how can I reverse this and go back to the way it was?

I'm concerned by all the changes I see happening lately, "if it ain't broke don't fix it" sorta comes to mind.

On the top right side, right of the "filter" symbol you can switch between "categories" (a view that doesn't add anything for me either) and "feed". The latter is the classic view.