You are going straight through the junction. Do you have the right of way over the oncoming vehicle turning left?

Why?

You are going straight ahead, so the oncoming vehicle turning left must give way to you. The video shows a green light, and traffic lights take precedence over priority signs, including the visible B-20 STOP sign.

art. 25 ust. 1 oraz art. 5 ust. 3 Prawa o ruchu drogowym