By airflow system, do you mean a Styrofoam device to cause better output in the vents?
My assumption is that is what you mean.
My 2022 22RBE does not have that.
The "intended" a/c unit when we ordered was to be a Coleman Mack system. The salesman described it came with a diverter, giving better air at the vents but preventing air from coming out the main system vent. He added, the unit may not be built with the Coleman as there were supply issues. He said it may be built with a Furion.
It was delivered with a GE (see my post on our shakedown cruise)
So, to answer your question, It seems to be dependent on what a/c yours has.
There are plenty of YouTube videos on people doing the work themselves. Otherwise, you should check with your dealer.