“Chaotic” withdrawal from Afghanistan?

I am not impressed by the sniping at the Biden administration and Afghanistan. We have gotten all but 200 US citizens who wanted to leave out. Some were walked to the airport by US officials. We sent out over 30,000 emails to US citizens about leaving. I guess the strongest critical argument i am hearing is that we should have pre-planned the evacuation longer, maybe not announced a pullout until planned. But am not sure what "advance planning" would have meant -- practical thoughts about this, as opposed to hysterical attacks on Biden? If people can make a practical suggestion about what advance planning would have meant, I am ready to criticize the administration for failing to do it.