Get all elements and fine out which has a specific style value

allElementStyles.js

// simple way to debug which elements are loading a specific font weight so you can remove them
const allElements = document.querySelectorAll('body *');
for (var element of allElements) {
  let styles = window.getComputedStyle(element)
  let weight = styles.getPropertyValue('font-weight');
  if (weight !== 'normal') {
    console.log(element, weight);
  }
}