It's hard to click some menus of Steam

[xuzhen]

Upfront Information

Please provide the following information by running the command and providing
the output.

• Fvwm3 version (run: fvwm3 --version)
  fvwm3 1.0.9 (released)
  with support for: ReadLine, XPM, PNG, SVG, Shape, XShm, SM, Bidi text, XRandR, XRender, XCursor, XFT, NLS

• Linux distribution or BSD name/version
  Ubuntu 23.10

• Platform (run: uname -sp)
  Linux x86_64

Expected Behaviour

The menus do not disappear when the mouse is moved to it

Actual Behaviour

Some menus disappear when I move the mouse to them, unless I move very quickly.

Steps to Reproduce

Fvwm3 with blank configuration. fvwm3 -f /dev/null

Install and run Steam (https://store.steampowered.com/about)

Click the Steam/View/Friends/Games/Help on top, the menu appears. Move mouse to the menu, menu disappears.

fvwm3.mp4

On other DE/WM, Steam behaves correctly.

openbox.mp4

[ThomasAdam]

Duplicate of #924

[xuzhen]

OK. I'll post what I found in that issue.