Windows built-in browser clips left-side content beyond the minimum horizontal scroll position

What happened?

On Windows, the desktop app's built-in browser clips the left side of a webpage in the pane beside the chat. The horizontal scrollbar is already at its leftmost position, so scrolling cannot reveal the missing content. The bottom scrollbar is also difficult to access. This makes account setup forms difficult to use.

Steps to reproduce

1. Open a chat and the built-in browser side by side.
2. Open Cloudflare Zero Trust onboarding at the "Choose a plan" screen.
3. Scroll the page horizontally all the way left.
4. The left side of the Free plan card remains outside the visible area; scrolling right is still possible.

A screenshot supplied by the user shows the Free plan title and description clipped at the browser pane's left boundary. The user also reports similar clipping on other pages in the app. The exact cause (page layout, embedded browser viewport, or app scaling) has not been isolated.

Expected behavior

All content should be reachable at the minimum horizontal scroll position, and scrollbar controls should remain accessible. A separate browser window is desirable for users working across multiple monitors.

Environment

• Windows desktop app, observed September 9, 2026.
• Four-monitor workspace.
• Exact app version, Windows display scaling, and per-monitor resolutions have not been captured.
• Reproduction in an external browser has not yet been tested.

Possibly related pane-layout report: #41526, although this report concerns unreachable content rather than the choice of pane placement.

No source file, test, or entry point is named. First reproduce the clipping on Windows while recording the app version, display scaling, and monitor resolutions, and compare it with an external browser; done means all page content is reachable at the leftmost position and the scrollbars remain usable.