Does this line indicate the stop spot that ensures the best visibility at the intersection?

Why?

Here, the P-12 stop line is positioned at the entrance to the junction, beyond the STOP sign. It marks the position that provides the best view of the priority road and a safe place to wait.

P-12, załącznik nr 2 pkt 4.2.3 do rozporządzenia w sprawie warunków technicznych dla znaków drogowych