AI Overviews (formerly SGE) is Google's generative layer. For commerce queries, it increasingly appears above the 10 blue links — a shopping carousel, a synthesised answer, and a list of inline citations. Clicks on the overview flow through to the cited sites.
To be cited in AI Overviews you need solid classic SEO (the retrieval base), Google-Extended allowed, clean Product schema, and content that directly answers the head queries in your category. Pages that already rank in the top 5 are eligible; those that don't are rarely pulled in.