I had to laugh
You posted my garden has settled in again, at the same time I announce I am switching to hempy for the winter
Early in a seedlings life, when the nodes have parallel branching, it you cut a leader it forms two or more branches at the node below where you cut (topping and FIMing.) This may also force lower nodes to develop more branching.
Once the seedling reaches sexual maturity, branching shifts from parallel to alternating, so if you cut a leader, it only sprouts one new branch from the node below where you cut. This basically makes the branch regrow as a single branch from the node just below where you cut. It still may also force lower node development, but it results in less branching than when the node would form two new branches.
For a sexed plant with alternating modes, I usually use LST to force lower node development when I want to create more branching.
In my world, a plant can have too many branches, so topping instead of LST, especially topping only an inch or two, should avoid a lot of new branching, for those times when I want to avoid new branching - especially If I remember to trim the new growth from the lower nodes.