Stackable layouts is a set of layouts designed for use with Layout Paragraphs.
It's meant to capture the flexibility of building a page with paragraphs one "slice" or component at a time, rather than adhering to more complex multi row layouts provided with Layout Discovery, out of the box.
The aim is to achieve the best of both worlds; paragraphs flexibility and drag and drop into lightweight layouts.
Much thanks to Aten Design Group and Unity Technologies for Layout Paragraphs.