PageUp / PageDown do not reliably scroll the current conversation in Codex App on Windows

What variant of Codex are you using?

App

What feature would you like to see?

In the Windows version of the Codex App / ChatGPT Desktop App, pressing PageUp or PageDown does not reliably scroll the current conversation. The official keyboard shortcut docs mention Ctrl + PageUp / Ctrl + PageDown for switching to the previous or next chat/tab, but plain PageUp / PageDown do not seem to consistently work for scrolling the active conversation pane.

Environment

• OS: Windows
• App: Codex App / ChatGPT Desktop App
• Keyboard: Standard keyboard with dedicated PageUp / PageDown keys

Steps to Reproduce

1. Open a long conversation in Codex App.
2. Click inside the conversation/content area, or leave the default focus as-is.
3. Press PageUp or PageDown.
4. Observe whether the current conversation scrolls by page.

Actual Behavior
PageUp / PageDown do not reliably scroll the current conversation. In some cases, the key event appears to be swallowed by the input box, terminal, code panel, browser panel, or another focused area.
Expected Behavior
When the conversation pane is focused, or when there is no active text-input focus, PageUp / PageDown should scroll the current conversation just like in standard browsers and desktop applications.
Additional Context
Ctrl + PageUp / Ctrl + PageDown can remain mapped to previous/next chat or tab switching. This request is specifically about supporting plain PageUp / PageDown for scrolling the active content pane on Windows.

Additional information

No response

No file or test is named. Start by reproducing the PageUp/PageDown behavior in a long Windows conversation, then trace the desktop app's keyboard-focus and conversation-scrolling entry points; done means plain PageUp/PageDown scroll the active conversation without breaking input, terminal, code-panel, browser-panel, or Ctrl-based tab switching.