A demo of Mercedes Benz Drive Pilot being sold in Germany:
FSD beta is still L2 (if there's an accident, it's on the driver, not Tesla.)
The advantage for Drive Pilot is: If there's an accident during the operation of L3 on highways, Mercedes will take responsibility (at least currently in the EU because of the law. It's unknown whether it still honors that once it sells in the US despite the lack of such law.)
If the car is not in the L3 operation (because it will hand off to the driver once the speed exceeds 37 MPH on highways) but only in the L2, then the driver is still on the hook when there's an accident during the operation of L2.
Its L3 is hands-free. Its L2 is like Tesla: Not hands-free, and you got nagged.
Remember, in an accident because the driver is distracted and reading a magazine while the car is in L3, Mercedes will be responsible for it because that's what the definition of Autonomous means.
It will be interesting to see whether the consumers see enough advantages to buying L3 Drive Pilot instead of Tesla FSD.