Hi Manu,
Thanks for reaching out! Most the blocks on the home page template are core WordPress blocks. There are exceptions like the Content Slideshow and Portfolio blocks that pull content from the database into a query, in which case, there would be no custom Yoast SEO options for those blocks. However, I would recommend SEO optimizing the posts or pages individually in those cases.
Is there something specific you’re trying to optimize for SEO? Do you have any screenshots illustrating the issue? Also, this may be a support request for Yoast, since this is referring to functionality beyond the scope of the theme.
Thanks!