To come back to this intersection:
1) the Tesla (on FSDBeta v12) had the right of way to turn right as opposed to the oncoming car turning left, but this right of way only lasts during this turn (so on the intersection)
2) what the Tesla did is turn right in its designated lane and then immediately change lanes to the left, seen in the pic posted by
@diplomat33 . When performing this lane change, the Tesla had NO right of way to the cars in the lane it wanted to enter. When the other car honked it was because he turned left in his designated lane (side by side the Tesla that had just turned right, so both cars are not interfering each other) and was confronted with the Tesla cutting him off by entering his lane in an unsafe manner.
The Tesla should have slowed down in its lane (whilst signaling to the left), waiting for the honking car to pass him, and then execute the (double) lane change to the left.
I know v12 is smoother and a step up from v11, but I'm getting tired of the cheerleading that is overlooking severe flaws.