Should you resign from overtaking in the presented situation?

In the photo you are driving in the right lane under a flyover behind a van; the sign on the right side of the road shows that the left lane ends soon, and the board "Zalecana zasada ruchu" (recommended traffic rule) recommends the zipper merge (jazda na suwak). Overtaking in the left lane, which is about to disappear, makes no sense - you must give up the manoeuvre. The answer is: yes.

The Road Traffic Act requires you, before overtaking, to make sure that you have enough visibility and enough space to overtake without obstructing anyone's movement. When a lane ends right in front of you, you will not have time to pass the vehicle and return in front of it, and if you force your way in, you will make others brake. You stay behind the van, and at the narrowing you let vehicles from the ending lane in, one by one in turn.

Legal basis: Art. 24 para. 1 point 1 and Art. 22 para. 4a of the Road Traffic Act (Prawo o ruchu drogowym)