I have a 2024 Kia Sportage Hybrid. You can set the following distance between your vehicle and the leading vehicle according to your preference, and of course if you set it to a close follow the car’s going to apply the brakes more suddenly than if the following distance were greater. (However, I find that if I leave the following distance at the default setting, other drivers see an opportunity to merge into the space in front of you.) I would also note that a quick brake operation always feels more disruptive when you’re not personally doing the braking.