Pin one hand to the wall and your chest finally lets go.
Move slowly into it and never force the stretch, you should feel a pull, never a pinch.
Pinning one palm to the wall and rotating your torso away puts a targeted stretch through the chest, one side at a time, at a depth you control completely. The wall fixes your hand in space so the pec has nowhere to hide as you turn, opening the front of the chest and shoulder that pressing and desk hours pull tight. Held after training or between long sitting stretches, it is one of the simplest ways to keep pressing shoulders happy.
Long enough to feel the tissue let go, breathing slowly the whole time, then repeat on the other side. Easing in and out a couple of times often beats one forced long hold.
Yes, it changes where the stretch lands. Shoulder height is the standard, and moving the hand slightly higher or lower shifts the emphasis through different fibres of the chest, so explore gently.
Back off, that is not the stretch working. Turn less far away from the wall, or drop your hand slightly lower, and stop at a clear pull across the chest rather than any pinching sensation.
