Where dynamic WMs constantly rearrange all the windows with every change according to some fixed layout, the static ones work basically like Vim's windows and buffers. Meaning windows are stacked above each other by default with only the first one showing, but with some shortcuts you can split horizontally or vertically and change all split dimensions.
I have used many tiling window managers and over time I gravitated away from all the dynamic WMs because they're just not flexible enough for the real world. They tend to work on the assumption that the user needs all windows on the screen all the time, and this does not make sense in many scenarios.