Describe startTransition differences neutrally

Author: aurorascharff

src/content/reference/react/startTransition.md

@@ -53,10 +53,11 @@ function TabContainer() {
 
 * The standalone `startTransition` function is not associated with a component.
   If the `action` throws an error or returns a rejected Promise, React reports
-  the error as uncaught, and an Error Boundary does not handle it. To let the
-  nearest Error Boundary handle these errors, use the `startTransition`
-  function returned by
-  [`useTransition`](/reference/react/useTransition#displaying-an-error-to-users-with-error-boundary).
+  the error as uncaught, and an Error Boundary does not handle it. In contrast,
+  the `startTransition` function returned by
+  [`useTransition`](/reference/react/useTransition#displaying-an-error-to-users-with-error-boundary)
+  is associated with a component, so the nearest Error Boundary can handle
+  these errors.
 
 * You can wrap an update into a Transition only if you have access to the `set` function of that state. If you want to start a Transition in response to some prop or a custom Hook return value, try [`useDeferredValue`](/reference/react/useDeferredValue) instead.
 
@@ -99,11 +100,12 @@ With a Transition, your UI stays responsive in the middle of a re-render. For ex
 
 <Note>
 
-`startTransition` does not provide the `isPending` flag. Call it from code that
-cannot call Hooks, such as data-library code outside a component. Unlike the
-function returned by [`useTransition`](/reference/react/useTransition), the
-standalone `startTransition` is not associated with a component. As a result,
-an Error Boundary cannot handle errors from its Action. [See Caveats.](#caveats)
+The standalone `startTransition` and the function returned by
+[`useTransition`](/reference/react/useTransition) both mark state updates as
+Transitions. The standalone function does not provide the `isPending` flag and
+is not associated with a component, so an Error Boundary cannot handle errors
+from its Action. Unlike `useTransition`, the standalone `startTransition` is not
+a Hook and can be called outside components. [See Caveats.](#caveats)
 
 [Learn about Transitions and see examples on the `useTransition` page.](/reference/react/useTransition)
 

src/content/reference/react/useTransition.md

@@ -1744,8 +1744,8 @@ This is a JavaScript limitation due to React losing the scope of the async conte
 ### I want to call `useTransition` from outside a component {/*i-want-to-call-usetransition-from-outside-a-component*/}
 
 You can't call `useTransition` outside a component because it's a Hook. In this
-case, use the standalone [`startTransition`](/reference/react/startTransition)
-function instead. It marks state updates as Transitions but does not provide the
+case, the standalone [`startTransition`](/reference/react/startTransition)
+function can mark state updates as Transitions. It does not provide the
 `isPending` flag. Because the standalone function is not associated with a
 component, an Error Boundary cannot handle errors from its Action.