Yes, a lot. Schema markup is the language that translates your content into a structure machines understand easily. When you mark up an article with the Article schema, including author, datePublished and publisher, the AI can assess credibility and recency with greater precision.
The most useful schemas for GEO are: Article (for editorial content), FAQPage (for questions and answers), HowTo (for tutorials), Product (for product pages) and Organization (for institutional information). Each one helps the AI understand the type of content and extract relevant information.
FAQPage is especially powerful for GEO because AIs process questions and answers as independent units. Each Q&A pair marked up with FAQPage is a potential quotable snippet. If the user's question matches an FAQ on your site and it is well structured, the chance of citation increases considerably.