Should you change to the middle lane in this situation when you intend to go straight on?

You are occupying the right lane, where the visible directional arrow P-8d and vertical sign F-10 allow only turning right. To continue straight, you must change to the middle or left lane, from which this manoeuvre is permitted. According to § 87 para. 1 of the regulation on road signs and signals, arrows in a lane mean that driving from that lane is only allowed in the direction indicated by the arrow.