In this situation, can you leave the intersection?

In the video you are driving through a roundabout with traffic lights; the traffic lights at the entry and at the exit show a green light, and a cyclist who has passed the exit is already riding on its right side, off the roadway. Since the signal is green and there is space beyond the junction, you may leave it. The answer is: yes.

The Regulation on road signs and signals states that the green signal of traffic lights S-1 means permission to drive past the traffic lights, but does not allow entry if the movement of the vehicle would make it difficult for pedestrians or cyclists to leave the roadway, or when, because of traffic conditions, it would not be possible to leave the junction before the green signal ends. The Road Traffic Act also prohibits entering a junction if there is no space on it or beyond it to continue driving. Here nothing is blocking the exit, and the cyclist is already off the roadway, so you drive on, watching the pedestrian crossing and the cycle crossing at the exit.

Legal basis: § 95 para. 1 point 1 and para. 2 of the Regulation on road signs and signals; Art. 25 para. 4 point 1 of the Road Traffic Act (Prawo o ruchu drogowym)