[Linux/XFCE] ChatGPT Desktop 26.818.61809 emits protocol, feature-key, listener, and Chromium errors on startup

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

ChatGPT Desktop 26.818.61809 from the official OpenAI Linux DEB stable repository.

Bundled Codex CLI/app-server: 0.149.0-alpha.4.3.

What subscription do you have?

ChatGPT Plus.

What platform is your computer?

Linux 7.0.0-30-generic x86_64 x86_64

Linux Mint 22.3, XFCE, X11.

What issue are you seeing?

Launching the official Linux desktop app from a terminal succeeds: the window becomes ready, the bundled app-server initializes, account lookup succeeds, and the local connection reaches connected. However, startup emits several internal errors and warnings:

Failed to register codex:// protocol handler isPackaged=true

(node) [DEP0169] DeprecationWarning: `url.parse()` behavior is not standardized and prone to errors that have security implications.

(node) [DEP0180] DeprecationWarning: fs.Stats constructor is deprecated.

MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 destroyed listeners added to [WebContents]. MaxListeners is 10.

Electron renderer console [warning]: Matched leaf route at location "/" does not have an element or Component. This means it will render an <Outlet /> with a null value by default resulting in an "empty" page.

ignoring invalid experimental feature enablement keys: apps_mcp_path_override

Electron renderer console [error]: RequestError: Failed to fetch undefined

Registration response error message: DEPRECATED_ENDPOINT

The apps_mcp_path_override warning is propagated as a connection-failed error by the remote-connections manager even though the same event reports state=connected.

The application remains locally usable, so these are not startup-fatal errors. They appear to be multiple packaging/runtime compatibility issues rather than a missing system dependency.

What steps can reproduce the bug?

1. Install the current chatgpt package from OpenAI's official Linux DEB repository.
2. On XFCE/X11, ensure no ChatGPT process is already running.
3. Start the app from a terminal:

``bash
chatgpt
``

1. Wait for the main window and backend initialization to complete.
2. Observe the messages above on stderr.
3. Exit with Ctrl+C.

The app-server initialization itself succeeds in roughly 0.5 seconds and the main window reaches ready-to-show.

What is the expected behavior?

• Startup should not emit deprecated Node API warnings from packaged application code.
• The codex:// handler should register consistently on supported Linux desktop environments.
• Desktop feature flags should be compatible with the bundled app-server and should not mark a connected remote manager as connection-failed.
• Electron windows should not exceed the default listener limit during normal startup.
• The renderer should not issue a request with an undefined target.
• The bundled Chromium runtime should not attempt registration through a deprecated GCM endpoint.

Additional information

Protocol-handler checks show an integration mismatch:

$ xdg-mime query default x-scheme-handler/codex
chatgpt.desktop

$ gio mime x-scheme-handler/codex
No default applications for “x-scheme-handler/codex”

XFCE reports that xdg-settings get default-url-scheme-handler codex is not implemented.

Additional isolation evidence:

• apps_mcp_path_override is not present in the user's Codex or desktop configuration.
• Authentication succeeds (authenticatedAccountPresent=true, result=succeeded).
• The bundled Codex app-server handshake succeeds.
• No missing shared libraries, GPU initialization failure, fatal sandbox error, or native crash was observed.
• 26.818.61809 is currently the installed and candidate version in the official repository.
• The feature-key warning appears related to #38095, but this reproduction is on Linux and also captures the protocol registration, listener, renderer-request, and bundled Chromium errors.

No account identifiers, local task IDs, private paths, tokens, prompts, or raw logs are included.