Metal Slug

I feel like some metal is loose in the pedals area or above the pedals which vibrates and produces this noise when any kind of load is put on engine and rpms drop below 800, it can also be heard only once if I Put the car in first gear and release the clutch a little quick, in this video its constant because load is constant on engine as im holding the clutch at bite point

VID_20221206_161309.mp4