If your talking about the auto stop/start that happened when you push the brake down at the lights you should 100% disable this.
They implemented it thinking it would be great that you would be not burning fuel and emissions for 30s while the lights were red but in reality what happens is that as soon as the engine stops your oil pressure drops, then your restarting with no oil in the cylinder and that causes an extreme amount of wear on your piston rings and other components. I dont remember the exact figure but starting and stopping while the oil pressure is low is responsible for like ~90% of engine wear.
Depending on how many lights you encounter you could be doing exponentially more basically cold starts and your going to need to service your car much more often, replace the oil and filter, replace other components that wear (+ costs of increased servicing) just to save a couple minutes of idling emissions and fuel. I can tell you which is much worse for the environment.
There is a german channel on youtube that literally did this as a lab test with a real engine to show how much extra wear was happening to your engine. The system was a 'good on paper' idea but they overlooked some key factors i think.