Ibus-hangul is not working in KDE

I completed to add below things in the $HOME/.bashrc

Also, I rebooted this Manjaro OS, and I already set ibus-hangul like below
But ibus-hangul does not appear when I start this OS.

Please, can someone tell me how to enable that ibus-hangul
When I boot this Manjaro Linux KDE? Thank you.

Hello,
I came here with the same issue for fcitx5.
Why adding exports to .bashrc instead of permanently adding to /etc/environment? I mean, since I cannot call myself a Linux expert, there may be a reason, but after I saw your post I verified that mine did not have the lines, so I added them and it worked perfectly.
I hope it helps.

https://wiki.archlinux.org/title/Talk:IBus

Apparently this has ibus working:

excerpt from ~/.bashrc
# Check for an interactive session
[ -z "$PS1" ] && return

alias ls='ls --color=auto'
alias ll='ls -lFh --color=auto'
alias emacs='mg'
PS1='[\u@\h \W]\$ '
export GDM_LANG=fr_FR.UTF-8
export LANG=fr_FR.UTF-8
export LC_ALL=fr_FR.UTF-8
export LANGUAGE=fr_FR.UTF-8
export LC_CTYPE=fr_FR.UTF-8
export XMODIFIERS="@im=ibus" 
export XIM=ibus export XIM_ARGS="-d" 
export XIM_PROGRAM_SETS_ITSELF_AS_DAEMON=yes 
export DEPENDS="ibus" 
export XIM_PROGRAM=/usr/bin/ibus-daemon 
export GTK_IM_MODULE=ibus 
export QT_IM_MODULE=ibus 

#export XMODIFIERS="@im=ibus"
#export GTK_IM_MODULE=ibus
#export QT_IM_MODULE=ibus
export GTK_IM_MODULE_FILE=~/.immodules

Then later:

I got ibus working on wayland + plasma with following snippet:

~/.config/plasma-workspace/env/ime.sh

export GTK_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
export QT_IM_MODULE=ibus