On the page it shows the plan has "All Enterprise Starter features" but there's no obvious link to what the "Enterprise Starter features" are. Had to dig around the site to find it [1].
Yes, "enterprise starter" is definitely not getting enough exposure. The name is actually so confusing that I wasn't sure if it's some paid trial or an actual product. I once contacted the licensing team asking about that.
1: https://about.gitlab.com/products/