Most civilizations created hierarchy, there are examples of somewhat anarchistic cities and civilizations that were very egalitarian and free, we can get inspiration from the to try to create a different world.
This civilization meant exploitation of peasants, genocide of Native Americans, slavery, exploitation of women. It created a lot of wars and suffering. I treat anarchism as a direction to try to get nice parts of current world (scientific research, some technologies like advanced medicine) without the inequalities and suffering that was done along the way. Anarchists postulate structures, a lot of them postulate replacing current structures with federated decentralized structures utilizing various horizontal ways of making decision with the possibility to delegate someone to a task where they have certain autonomy and they can get instantly recalled if for some reason they are not adequate to the task.