Lane keep assist of the 2023 Volvo Cross Country is a feature that helps keep the car in its lane. It does this by using ultrasonic sensors to measure the distance between your vehicle and the lane markings, as well as radar sensors to measure the relative position of other vehicles around you. If you get too close to either of these things, it will vibrate your steering wheel so that you know what's happening.
Blind spot monitoring is a safety feature that alerts the driver of other vehicles in the blind spot. It can be a visual alert or a sound alert, or it can be both. The V90 Cross Country has this capability as well.
Adaptive cruise control (ACC) is a system that takes over the throttle and brakes to keep a safe distance from the vehicle in front, and can also brake and accelerate in stop-start traffic. It can maintain a safe distance from vehicles in front when you're on the motorway as well.