Presumably only the arrangement and sizing of windows. I.e. you don't have to :split or :vsplit manually, just create or delete windows and they'll be arranged according to the layout algorithm.

Yep, that's even better said

It forces a tiled layout that helps productivity by: - keeping all buffers visible - making jumping from one to another very easy - driving focus on the main buffer

The advantages are well-known and demonstrated by dwm from which this plugin is inspired

Ah, it helps automate the maintenance of that particular window structure. Nice.

Yep