This has a lot to do with whether your movements are standardized or not. You can check the pictures of trapezius muscle on Baidu to see the direction of muscle fibers and the bones it connects. When practicing related movements, try to lock the connection point of trapezius muscle on the bone, and try to reduce the movement of the connection point to avoid the excessive development of trapezius muscle. When practicing shoulders, let the shoulders sink, try to fix them, only lift the arms, and try not to let the trapezius muscles participate. Overdevelopment of trapezius muscle is also related to shrugging when pushing chest. Try to let your shoulders sink in the direction of your feet when pushing your chest, and try not to involve trapezius muscles as much as possible. It is estimated that the trapezius muscle will become smaller after 2 months. The key point of less stimulation to the oblique side is: only move the upper arm, not the clavicle.