This is still on our to-do list, sadly it did not make it for this update. It's sadly not as easy as just changing a number, as we also want players on PS4 to have a stable experience without too extreme frame-changes.
You can still feed them rotten food. It was removed as we added additional functionality to the desinfectant items due to technical constraints.
We clarified it a bit better in the changelog now, this is mainly about behavior of the game while you alt-tab out of it. You can either freeze the game completely, have visuals moving, or both sounds/visuals active while not focused in-game.
Also clarified this part in the changelog now, 1 is for visuals only, 2 is for both visuals and sounds. If you want it to freeze, just remove the parameter.
Because they are disinfected. It wouldn't be fair to players to have the chance with any fight from the start at the coast to get the wound infection immediatly, so we give them 2 "save" chances to bandage (the bandages don't spawn with full charge), afterwards they will have to find clean bandaging material/disinfectant.
Which does not mean that every weapon spawns with a mag. Just that when you find a weapon with a mag, it has at least 1 bullet in it.
Depends on the point of view. It seems more fitting to us that infected would search for a new target once one is incapacitated. It gives players the chance to escape from tense situations (you're mostly in a bad spot when infected hit you uncon, and they will probably still be wandering around somewhere close after you wake up) and we trust that it will make fights more interesting when infected switch targets from unconscious players to active combatants.