Yoast breadcrumbs don’t override the existing theme breadcrumbs

I am using the “Porto” theme for my e-commerce website and I installed the “Yoast SEO” plugin and I enabled “Yoast breadcrumbs”. (Enable breadcrumbs for your theme). But it does not affect the theme of breadcrumbs. I need support to override these breadcrumbs from “yoast breadcrumbs”

Yoast SEO Version: Version 20.7