Can we use Yoast plugins on WordPress.com?
The basic WordPress.com plan does not allow plugin installation.
Upgrading to the WordPress.com Business Plan allows you to install plugins from the official WordPress repository, like Yoast SEO, but does not have the ability to uploading plugins, like Yoast SEO Premium.
Learn more about the different WordPress platform options here.
Please know that certain code snippets such the ones needed to implement Yoast SEO Breadcrumbs may not work.