Home page - site map - shopify

My home page is not being found in Google Search Console from my site map. My homepage is indexed but it is found from other pages on my website. I contacted Shopify support. My home page is not listed on the pages section of my sitemap but under the products section. I asked Shopify to move it to the pages section so it could be found by Google directly rather than from other pages. Shopify says that it is perfectly normal for my homepage to be under the products section and all Shopify stores have their sitemap layout like this. They say the fact that Google cannot find the homepage is a known error with Google and I should take this up with them. Google aren't great for support. They take months to come back to me and the community has proven not helpful in my experience. What I am curious about is are other Shopify stores sitemaps laid out with the homepage under the products section? Does this have a negative impact on SEO?