[Linux/DEB] App Details opens unofficial MindMate listing because ChatGPT package lacks AppStream metadata

What version of the Codex App are you using (From “About Codex” dialog)?

26.820.60940

What subscription do you have?

Not relevant to this Linux packaging issue.

What platform is your computer?

Linux 7.0.0-30-generic x86_64 x86_64
Ubuntu 24.04.4 LTS
GNOME Shell 46.0 (Wayland)
GNOME Software 46.0-1ubuntu2

What issue are you seeing?

The official ChatGPT/Codex Linux DEB is not associated with an AppStream component. As a result, opening Settings → Apps → ChatGPT → App Details launches GNOME Software on the unrelated MindMate listing, which is explicitly described as an "Unofficial application for ChatGPT".

MindMate is not installed. The installed application is the official OpenAI package:

Package: chatgpt
Version: 26.820.60940
Architecture: amd64
Maintainer: OpenAI <support@openai.com>
Homepage: https://developers.openai.com/codex/app
APT repository: https://persistent.oaistatic.com/codex-app-prod/linux/deb

The package contains a desktop entry but no AppStream metainfo/appdata file:

$ dpkg-query -L chatgpt | grep -E '/applications/|/metainfo/|/appdata/'
/usr/share/applications/chatgpt.desktop

$ appstreamcli what-provides id chatgpt.desktop
Could not find component providing 'id::chatgpt.desktop'.

A text search then resolves the unofficial application first:

Identifier: io.github.koromelodev.mindmate
Name: MindMate
Summary: Unofficial application for ChatGPT
Bundle: flatpak:app/io.github.koromelodev.mindmate/x86_64/stable

This makes the operating system appear to identify the official installed application as an unrelated third-party application and could lead users to install the wrong package.

What steps can reproduce the bug?

1. On Ubuntu 24.04 with GNOME 46, download and install the official Linux DEB from the OpenAI ChatGPT/Codex app page.
2. Confirm that the official chatgpt package is installed.
3. Open Settings.
4. Navigate to Apps → ChatGPT.
5. Click App Details.
6. Observe that GNOME Software opens the MindMate page instead of details for the installed OpenAI application.

What is the expected behavior?

GNOME Software should identify the official installed ChatGPT/Codex application and show its correct package details. If no store page is available, Settings should not redirect to an unrelated application.

The Linux DEB/repository should provide valid AppStream metadata associated with chatgpt.desktop.

Additional information

The official APT repository and signing key are configured correctly, and APT updates the package normally. This issue only affects desktop/store metadata resolution.

A screen recording reproducing the behavior is available if needed.