Created attachment 183552 [details]
Look at the top and botton of these context menus.

STEPS TO REPRODUCE
Right-Click on a Firefox tab.

OBSERVED RESULT
The context menu is scrollable for no reason (see attachment).

EXPECTED RESULT
The context menu should display all options at once, since the screen is big enough to show them.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-11300H @ 3.10GHz
Memory: 9 GB of RAM (8.1 GB usable)
Graphics Processor 1: NVIDIA GeForce GTX 1650
Graphics Processor 2: Intel® Iris® Xe Graphics
Manufacturer: LENOVO
Product Name: 82MG
System Version: IdeaPad Gaming 3 15IHU6

ADDITIONAL INFORMATION
A dev doesn't seem to think it's a Firefox issue, so I'm also reporting here.
https://bugzilla.mozilla.org/show_bug.cgi?id=1979489#c1