Question Is AR Mobile Pathway in Unity Learn outdated? Face Tracking.

Hello,
In this link, is the section described below outdated?
Because without these kinds of adjustments, my ArProject already getting the mesh and the material while face is recognized again.
I use iPhone 12 to debug.
The tutorial below is debugged with Android.
Is this an ios power or should be an update on these URL?
https://learn.unity.com/tutorial/sa...0b63edbc2a7177b73905#633dc8b7edbc2a0336ec1c24