SUMMARY
If I bind a key on my tablet to English E and switch to Ukrainian keyboard layout, the binding will do nothing. If 
I bind the a key on my tablet to a key with Ukrainian layout selected, for example Є, the binding won't work at all, no mater the selected keyboard layout. 

STEPS TO REPRODUCE
1. Bind a key on a tablet or a pen to a keyboard key, for example E, apply
2.  Switch keyboard layout to Ukrainian
3. Try to use the binding on a text field
4. Switch keyboard layout back to English
5. Try to use the binding on a text field

1. Switch keyboard layout to Ukrainian
2. Bind a key on a tablet or a pen to any alphabetical keyboard key
3. Try to use the binding on a text field

OBSERVED RESULT
The binding only works with English keyboard layout.
A binding created with a non-English keyboard layout doesn't work at all

EXPECTED RESULT
Bindings should be independant of the selected keyboard layout

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-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 5600H with Radeon Graphics
Memory: 16 GiB of RAM (13.5 GiB usable)
Graphics Processor 1: AMD Radeon Graphics
Graphics Processor 2: NVIDIA GeForce RTX 3060 Laptop GPU

ADDITIONAL INFORMATION
It might be related to https://bugs.kde.org/show_bug.cgi?id=453661, but there for me a keybinding created with Ukrainian keyboard layout works, here only ones created with English do.