[Windows] ChatGPT app launches but no window appears — main process stuck "Not Responding"

App version: 26.810.7004.0 (Microsoft Store)
OS: Windows 11 Enterprise (Build 26200)
GPU: Intel Graphics, driver 32.0.101.8508

What happens:
Opening ChatGPT spawns multiple ChatGPT.exe processes but
no window ever appears. tasklist /v shows the main process
immediately as "Not Responding". No visible window is created.

Steps to reproduce:

1. Install ChatGPT from Microsoft Store
2. Click Open / launch from Start menu
3. Processes appear in Task Manager but no window shows

What I tried:

• App reset via PowerShell (Reset-AppxPackage)
• Full uninstall + reinstall from Microsoft Store
• Multiple system reboots
• Network is fine — chatgpt.com reachable in browser

Workaround: chatgpt.com in browser works fine.