ContextMenuStrip not opening when moving window on secondary display

• .NET Core Version: 3.1

• Have you experienced this same bug with .NET Framework?: Haven't tried. I need to use .NET Core

Problem description: Given

• a WPF app
• that uses the WinForms ContextMenuStrip
• in a dual monitor setup
• when moving the MainWindow to the secondary monitor
• the context menu does not display at all

Expected behavior: The context menu is displayed

Minimal repro: Repo: https://github.com/ccornici/tray_context_menu_bug

Demo (contained in the repo too)

Other details:

• All other tray icons from other apps (ex: Spotify, NVidia Control Panel etc) work as expected. So it doesn't look like a WIn 10 bug that affects any and all tray icons.
• The Opening event of the ContextMenuStrip gets fired. It simply doesn't display the context menu...