Windows Codex docs winget command installs wrong Microsoft Store app

What issue are you seeing?

The Codex Windows documentation currently recommends installing Codex with:

winget install Codex -s msstore

On my Windows machine, this command initially resolved to an unrelated Microsoft Store app:

Codex - QR Reader & Generator
Product ID: 9NBLGGH5M02G
Publisher: IYIA
Publisher URL: https://codexqr.app/

<img width="960" height="480" alt="winget resolving Codex to QR Reader app" src="https://github.com/user-attachments/assets/5cfecc1d-c564-4b25-b427-804a75d70371" />

This appears to be unrelated to OpenAI Codex, and could cause users to install the wrong application.

Please consider checking whether the documented WinGet command can resolve ambiguously in some Microsoft Store markets or source-cache states, and whether the docs should disambiguate the install command so it reliably installs the official OpenAI Codex app.

What steps can reproduce the bug?

Run the documented Windows install command:

winget install Codex -s msstore

At the time I opened this issue, WinGet resolved Codex to Codex - QR Reader & Generator, published by IYIA, instead of the OpenAI Codex app.

What is the expected behavior?

The documented WinGet command should install the official OpenAI Codex app, or fail clearly if it cannot be resolved unambiguously. It should not resolve to or install an unrelated Microsoft Store app.

Additional information

The official OpenAI app does appear to be available in the Microsoft Store source, but the name-based search appeared to resolve ambiguously or inconsistently when I tested it.