I'd guess my Subaru's lane-keeping utilisation is in the same ballpark. (By miles, not minutes. And yes, I'm safer when it and I are watching the road than when I'm watching the road alone.)
My favorite feature of Subaru's system is when you change lanes, and it stays locked onto the car in the slower lane and slams on the brakes. People behind you love that.
I don't want minimize the efforts of other manufacturers (I'm sure they'll all have Tesla's features in the next generation), but: my wife has a Subaru Outback, and the two systems are as close in functionality as humans are to chimpanzees. The differences are many, stark and subtle (that Subaru screen), I'd just say take a test drive with FSD.
I'd guess my Subaru's lane-keeping utilisation is in the same ballpark. (By miles, not minutes. And yes, I'm safer when it and I are watching the road than when I'm watching the road alone.)