+1 on new map not being as useful as imagined. A 2-lane road I take frequently ends in the left lane being a left turn only lane, and the right lane being straight only. Before the map update, I would put the car in the left lane, and prevent it from merging right once or twice, until I got to within a couple blocks of the left turn lane. At that point it would always make another attempt and I would let it merge.
Now, it either doesn’t even offer to merge right, or sometimes offers it at 8 blocks away, and if you don’t accept it, then it does not even bother until maybe right at the very end. And I say maybe, because after the new map update I manually make it merge where it makes sense so I haven’t tried letting it go all the way to the end. Today it actually panicked briefly because I had to go straight and there is a very short 3rd lane for turning right, and as I was about to enter the intersection it tried to merge to the right, maybe because it remembered it might need to get in the right-most lane (except it was way too late).