Note that if you use Google fonts, only select font weights will be loaded on your website. So if you set font-weight 400 for body and 600 for headings, you will not be able to set 100, 300, or 700 font-weight for some of the Elementor/WPBakery elements. If you want to load additional font weights but don't want to set them globally, go to Advanced Typography, add a new rule with your font-family and font-weight without assigning it to any of the elements. Then, you will have this font-weight loaded globally so you can set it for any of the WPBakery/Elementor elements.