To be totally honest, Teslas are NOT FSD, they are effectively Level 2 Autonomy (Partial Automation) or possibly Level 3 (Conditional Automation).
True FSD would be Level 5 (Full Driving Automation).
In response to lawsuits (all settled out of court, as far as I know), Tesla was forced to start using the term “Full Safe Driving Supervised” because of idiots who believed Tesla’s hype and got themselves into trouble. Pressure from the NHTSA also came into play.
RTFM applies here, something very few actually do.
https://www.synopsys.com/automotive/autonomous-driving-levels.html
It’s good enough for traffic following in gridlock hands free it follows the car in front of you at 5 feet to 10 feet distances. When they stop you stop when they go you go like a duckling following momma. It also steers as well even curves following that car. On the motorway it does the same thing but at 80mph it.follows the car in front at 40 feet or so you can set the following distances when that slow down you slow and if they speed up you speed up to what ever top speed you set. If you are the first car and its a interstate that the Tesla recognises it will let you go hands free in the lead spot. If you haven’t spoofed the mandatory hands on every few minutes it will require you to wiggle the wheel every so often and to keep your eyes on the road. Mirrors glasses stops that annoyance and there are ways I won’t say on an open forum how to spoof the hands on every few minutes but if you know you know . I have gone hands free for over an hour on ih20 in both directions out of Big D. Once from the onramp for bucees at Camden Texas all the way to the exit 19 in Shreveport LA 100% hands and feet off the car. So technically not door to door L5 but way better than top end 2024 Toyota’s drive assist which only radar follows down to 20 mph, doesn’t brake hold nor autoresume , doesn’t steer nor follow the lead car.