If you view your sitemap.xml file then copy the “sitemap_products_1.xml” URL that’s in there (it’s important you do this as it’s unique to yours as a result of product IDs in the query parameters shaping what is output on the page), are the products there? That’s what I’d want to know for myself: do I see the product in my product sitemaps?
If you have a large SKU store, you will see multiple product sitemaps in there.