In this situation, if you turn right, do you have the right of way over a vehicle approaching from the left?

Why?

The A-5 sign on the right warns of a junction of roads of equal priority. The rider of the red scooter approaches from your left and has you on their right, so they must give way to you. You retain priority over that vehicle when turning right.

art. 25 ust. 1 Prawa o ruchu drogowym; znak A-5 „skrzyżowanie dróg”