Depending on which suspension design a car manufacturer uses on a given car the actual camber varies when moving through the suspension travel.
The actual camber at the wheel does therefore not stay constant all the way through the travel.
Usually suspension geometry is designed to increase camber gradually as the suspension is loaded and decrease as the body lifts.
This helps to increase tire contact patch area under load when cornering as the outside wheels (highly loaded as the car rolls) increase slightly in camber in the inside wheels (less load) decrease negative camber during roll, also increasing their actual contact patch during the turn.
Additionally (not seen in the setup in Assetto Corsa) many manufacturers design the front suspension system to increase negative camber during front wheel steering turn in, also helping in the same regard (ever wondered about the very extreme negative camber on old Mercedes Benz cars when they are parked with their front wheels turned in and showing massive camber values).
When you set up the camber of a car in Assetto Corsa, use the status window values with the car sitting loaded in the pit to find a certain camber value you aim at, then run a few hot laps, get back to the pits and check your tire temperatures to fine dial the proper camber (don't exceed tire temp differentials across the tire section - usually rule of thumb is not to exceed a differential of ~10º across the tire section, while aiming for a 5-7º differential to find proper camber is usually the best - dial in less camber for endurance type of races, "hotter" camber for sprint races).
Have fun!
