feel free to list other window managers you’ve used.
I have been happy with bspwm, but considering trying something else. I love its simplicity and immense customizability. I like that it is shell scriptable, but it is not a deal breaker feature for me.
I like how the binary split model makes any custom partition possible.
River defers Layout management to an external program (rivertile). If you want a layout based on a binary split tree, you can write your own so-called layout generator