Are you allowed in this situation to change the lane you are taking when you intend to go straight?

You are driving in the right-hand lane, on which a lane direction arrow for turning right is painted - this lane leads to the exit on the right. The left lane has an arrow pointing straight ahead. If you want to go straight on, you must move into the left lane. The line between the lanes is broken, so crossing it is allowed - changing lanes here is not only possible, but actually necessary.

Lane direction arrows on the roadway mean that from a given lane you may drive only in the direction shown by the arrow, and a single broken line marks the lanes and does not prohibit crossing it. When changing lanes, you exercise particular caution, switch on your left indicator in good time and give way to vehicles travelling in the left lane, especially those approaching from behind. The orange car in front of you is also driving in that lane, so do not pull in right in front of it.

Legal basis: § 86 para. 1 and § 87 para. 1 of the Regulation on road signs and signals; Art. 22 para. 1, 4 and 5 of the Road Traffic Act (Prawo o ruchu drogowym)