Thanks. I'll tell them to add those. Did you check out the SDK landing page? maybe that's clearer?
https://www.sdk.livecycle.io/signup2
My understanding is that this is aimed at FE development teams who are already using a preview environment platform (like Vercel or Netlify or something like that) to get preview environments for their PRs. When you install this SDK, you get the ability to leave review comments on top of the preview environment, so the different people on your team can see feedback in context and make fixes faster.