Layout: centerwork / centerfair for ultrawide monitors

I am trying out Ubuntu 20.04 and I am coming from awesomewm.

There I had the centerwork layout which works really well with ultrawide monitors. where the main window was "fullscreen" but to the left and right were smaller windows. The main window hat 2/4ths of the space in the middle and 1/4 was free to the left and the right.

Is there a possibility that this can be implemented?

I used this: https://github.com/lcpz/lain/blob/a4c86f9ace9dc5caad4f942af5d1be3eca47f666/layout/centerwork.lua