In this situation, do you have priority over the vehicle driving from the left into the traffic lane?

In the video you are driving out from under the canopy of a petrol station towards the street. The traffic lane you want to enter is occupied by cars coming from the left. When you leave the station, you are joining traffic (włączanie się do ruchu), so you are the one who gives way, not the other way round. The answer is: no.

Under the Road Traffic Act, entering a road from a roadside facility is joining traffic, and a driver who is joining traffic must exercise particular caution and give way to any other vehicle or road user. You drive out only when you will not force anyone to brake or change lanes - if you have to wait, you wait.

Legal basis: Art. 17 para. 1 point 1 and para. 2 of the Road Traffic Act (Prawo o ruchu drogowym)