That's autopilot, not FSD beta though, at this point it's probably 10 generations old
An autopilot is a system used to control the path of an aircraft, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator's control of the vehicle, allowing the operator to focus on broader aspects of operations (for example, monitoring the trajectory, weather and on-board systems).
3000 people die every day in automobile accidents, 10% of which are from people who are sleepy. Even standard autopilot is better than a tired driver