I'm also on the hydrogen team. Today we also shipped support for Hydrogen on React Router 7, which has experimental support for RSC: https://remix.run/blog/rsc-preview
Awesome! I appreciate all the open work your team does. A couple years ago, I was staffed on a project that was adopting RSC super early on, and I vividly remember crawling through Shopify blogs/code as one of the few solid resources available.