VS Code Codex panel freezes when switching from Explorer back to Codex (Windows, iGPU)

What version of the VS Code extension are you using?

openai.chatgpt 0.5.61

What subscription do you have?

N/A (API key / third-party compatible endpoint)

Which IDE are you using?

Visual Studio Code

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

In VS Code on Windows, switching from the Explorer view back to the Codex panel often causes “Window is not responding”.
It can freeze for ~10 minutes and then recover. This repeats every time.

Observations:

• Laptop with Intel UHD Graphics 630 (i5-8400) + NVIDIA GTX 1060 (no dGPU direct output / MUXless).
• Task Manager shows Explorer/normal VS Code on GPU0 (Copy), but Codex panel switches to GPU1 (3D, Intel iGPU).
• Forcing Code.exe to “High performance (GTX 1060)” in Windows Graphics settings did not fix it.
• Updating Intel iGPU driver did not fix it.
• Running VS Code with --disable-gpu or "disable-hardware-acceleration": true greatly reduces the issue (only ~1 second stutter).

What steps can reproduce the bug?

1. Open VS Code.
2. Open Codex panel.
3. Switch to Explorer (file tree).
4. Switch back to Codex panel.

Result: VS Code becomes unresponsive (“Window is not responding”) for a long time, then recovers. Repeats every time.

What is the expected behavior?

Switching back to the Codex panel should be instant without VS Code freezing.

Additional information

This looks related to WebView/GPU rendering on Intel UHD 630. Disabling hardware acceleration is the only reliable workaround.