Created attachment 136305 [details]
How the menu looks like in a distant place

SUMMARY
Opening an application menu in wayland results the menu to open a distant site. And when it's open it's hard to navigate through it. Like trying to move the mouse towards the meny might result in it closing. The menu item don't get selected by moving the mouse over it. And navigating it with keyboard isn't predictable sometimes pressing the up and down keys dosen't result in the next or previous item to be selced


STEPS TO REPRODUCE
1. Positon the application menu to be in the title bar of the application
2. Enable wayland
3. Click on the menu icon in the title bar

OBSERVED RESULT
Menu opens in a distant site and it's hard to navigate using keyboard or mouse

EXPECTED RESULT
The menu to open near the icon and to be easy to navigate it with either keyboard or mouse

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Manjaro 
(available in About System)
KDE Plasma Version: 5.21.1
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION