defer with Await and Suspense on page revalidations

[matys1]

I understand that on page revalidations (e.g. user submits a POST request) the Suspense fallback will not render and instead you get the pending UI (as per https://reactrouter.com/6.28.0/guides/deferred#when-does-the-suspense-fallback-render). However, does it also mean that the data is not streamed on page revalidations and only returns when the loader has finished awaiting all data?

Currently my loader returns:

  return defer({
    dashLoaderData: dashPageRes,
    tableLoaderData: tablePageRes,
    serverTime: DateTime.now().toUnixInteger(),
  });

where both dashLoaderData and tableLoaderData are promises.

and then in the component:

<Suspense fallback={<div>dashboard suspense fallback</div>}>
  <Await resolve={dashLoaderData}>
    <Dashboard
      formNumGroup={formNumGroup}
      isoWeekAndDate={isoWeekAndDate}
      timeZone={prefs.timeZone.name}
      isOrgLoading={isOrgLoading}
      serverTime={serverTime}
    />
  </Await>
</Suspense>
<Suspense fallback={<div>table suspense fallback</div>}>
  <Await resolve={tableLoaderData}>
    <Table
      formNumGroup={formNumGroup}
      dateTimeZone={dateTimeZone}
      timeZone={prefs.timeZone.name}
      isOrgLoading={isOrgLoading}
      serverTime={serverTime}
    />
  </Await>
</Suspense>

I can see that on the initial page load both fallbacks and then typically the table will resolve faster (and render first) before the dashboard. On page revalidations I don't see the fallbacks (this is expected as per the documentation) but the table and the dashboard components will re-render at the same time leading me to believe that defer on page revalidations is working like a regular json return and awaits all pending promises to resolve before re-rendering both components at the same time.

Is this expected behavior? I was hoping that also on page revalidations the the components would get re-rendered as soon as their data became available and not when the slowest data resolves and re-rendering everything together.