In this situation, are you allowed to drive straight ahead at the intersection without stopping?

In the video you are approaching a junction with traffic lights in a district of detached houses; the traffic lights above the roadway show a green light, and nobody is walking across the crossings. You are allowed to drive straight on through the junction without stopping. 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 beyond the traffic lights; the only exceptions are when 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 end of the green light. At the same time, the Road Traffic Act requires you to exercise particular caution when approaching a junction. Green does not free you from looking: you glance left and right to check that nobody is entering on red, and at the crossings, and then you drive through smoothly.

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