SUMMARY
The tilde (~) and caret (^) keys are not working anymore in KDE apps (e.g. Konsole)
The issue appeared after a recent update.
I'm on an AZERTY keyboard.
I type the caret (^) by pressing the '^' key followed by 'space'.
I type the tilde (~) by pressing 'AltGR' + '~'.

STEPS TO REPRODUCE
1. be on a Belgian keyboard
2. open the konsole
3. press '^' followed by space OR press AltGR and '~'

OBSERVED RESULT
nothing is being typed

EXPECTED RESULT
the character being typed

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0 
Qt Version: 6.7.0

ADDITIONAL INFORMATION

$ setxkbmap -print -query
xkb_keymap {
        xkb_keycodes  { include "evdev+aliases(azerty)" };
        xkb_types     { include "complete"      };
        xkb_compat    { include "complete"      };
        xkb_symbols   { include "pc+be+inet(evdev)"     };
        xkb_geometry  { include "pc(pc104)"     };
};
rules:      evdev
model:      pc104
layout:     be

Note that the key works in the browser and in xterm but it doesn't work in IntelliJ.

I'm on fcitx5, but I've tried using ibus too then nothing at all : no apparent effect.