Menu item not clickable on mobile device unless doing in a quite strange way

[sdshq]

Description

I ran into this issue using a mobile device (Huawei Matepad Pro 13.2') with a external mouse. The issue happens consistently in the official demoss of Jupyter Notebook/Lab/Lite and other lumino-based solutions (e.g. Eclipse Theia IDE). When clicking a 1st level menu (e.g. File), I can't make any 2nd-level item (e.g. New) to take effect by simply clicking it. I have to do in a quite strange way: 1) hover on the item, 2) press the left mouse button and hold, 3) slightly move the mouse, and finally get the menu item working.

Reproduce

As described above.

Expected behavior

I need the menu work like any other normal apps.

Context

• Operating System and version: HarmonyOS 4.0 (which is based on Android 12).
• Browser and version: Kiwi, Edge, and other Chromium based browsers.
• JupyterLab version: Latest versions on Jupyter official demos.

Troubleshoot Output

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Command Line Output

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Browser Output

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[sdshq]

After reinstalling browsers/termux for some times, I can no longer re-produce this issue. Closing this issue to not disturb others.