diff --git a/packages/runtime-core/src/componentRenderUtils.ts b/packages/runtime-core/src/componentRenderUtils.ts
index a1afae620..9df289b47 100644
--- a/packages/runtime-core/src/componentRenderUtils.ts
+++ b/packages/runtime-core/src/componentRenderUtils.ts
@@ -3,6 +3,7 @@ import {
   type Data,
   type FunctionalComponent,
   getComponentName,
+  isStatefulComponent,
 } from './component'
 import {
   Comment,
@@ -63,6 +64,7 @@ export function renderComponentRoot(
     inheritAttrs,
   } = instance
   const prev = setCurrentRenderingInstance(instance)
+  const isStateful = isStatefulComponent(instance)
 
   let result
   let fallthroughAttrs
@@ -71,7 +73,7 @@ export function renderComponentRoot(
   }
 
   try {
-    if (vnode.shapeFlag & ShapeFlags.STATEFUL_COMPONENT) {
+    if (isStateful) {
       // withProxy is a proxy with a different `has` trap only for
       // runtime-compiled render functions using `with` block.
       const proxyToUse = withProxy || proxy
@@ -154,9 +156,8 @@ export function renderComponentRoot(
 
   if (fallthroughAttrs && inheritAttrs !== false) {
     const keys = Object.keys(fallthroughAttrs)
-    const { shapeFlag } = root
     if (keys.length) {
-      if (shapeFlag & (ShapeFlags.ELEMENT | ShapeFlags.COMPONENT)) {
+      if (isElementRoot(root)) {
         if (propsOptions && keys.some(isModelListener)) {
           // If a v-model listener (onUpdate:xxx) has a corresponding declared
           // prop, it indicates this component expects to handle v-model and
@@ -210,8 +211,8 @@ export function renderComponentRoot(
   if (
     __COMPAT__ &&
     isCompatEnabled(DeprecationTypes.INSTANCE_ATTRS_CLASS_STYLE, instance) &&
-    vnode.shapeFlag & ShapeFlags.STATEFUL_COMPONENT &&
-    root.shapeFlag & (ShapeFlags.ELEMENT | ShapeFlags.COMPONENT)
+    isStateful &&
+    isElementRoot(root)
   ) {
     const { class: cls, style } = vnode.props || {}
     if (cls || style) {