Fedora 42 KDE, unable to install Chinese IME

I am new to Fedora and KDE, and I am trying to install a Chinese IME through fcitx5 on my Fedora 42 KDA Plasma. As I follow instructions given on other Reddit threads, I got stuck on the input method selector applet, which returns : "input method doesn't support im-chooser on this desktop session", and the log below : > [ 20.297670]: GLib-GIO: DEBUG: _g_io_module_get_default: > Found default implementation dconf (DConfSettingsBackend) for > ‘gsettings-backend’ imsettings information > > XINPUTRC: /home/usr/.config/imsettings/xinputrc Fichier : > /home/usr/.config/imsettings/xinputrc -> > /etc/X11/xinit/xinput.d/xcompose.conf Taille : 37 Blocs : 8 > Blocs d'E/S : 4096 symbolic link Périphérique : 0/42Inœud : 137854 > Liens : 1 Accès : (0777/lrwxrwxrwx) UID : ( 1000/ usr) GID : ( > 1000/ usr) Contexte : unconfined_u:object_r:config_home_t:s0 > Accès : 2025-06-08 17:54:32.446602366 +0200 Modif. : 2025-06-08 > 17:54:32.241601294 +0200 Changt : 2025-06-08 17:54:32.241601294 +0200 > Créé : 2025-06-08 17:54:32.241601294 +0200 Is DBus enabled: yes Is > imsettings enabled: yes Is GTK+ supported: yes Is Qt supported: yes Is > Action needed: yes DESKTOP: KDE-wayland GUESS_DESKTOP: > $XDG_SESSION_TYPE DISABLE_IMSETTINGS: > IMSETTINGS_DISABLE_DESKTOP_CHECK: DBUS_SESSION_BUS_ADDRESS: > unix:path=/run/user/1000/bus GTK_IM_MODULE: QT_IM_MODULE: xim > XMODIFIERS: @im=none IMSETTINGS_MODULE: X compose table > IMSETTINGS_INTEGRATE_DESKTOP: yes IMSETTINGS_DISABLE_SYS_XINPUTRC: no > IMSETTINGS_DISABLE_USER_XINPUTRC: no IMSETTINGS_IGNORE_SESSION: > > > [ 26.319709]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 > > [ 26.333147]: IMSettings-Daemon: WARNING **: Unable to > open X Display. Input Method may not work. [ 26.335904]: > libnotify: DEBUG: SNAP app: (null) [ 27.374772]: > IMSettings-Daemon: INFO: Starting imsettings-daemon... [ > 27.374933]: IMSettings-Daemon: INFO: [HOME=/home/usr/.config/imsettings] [ 27.375010]: > IMSettings-Daemon: INFO: [XINPUTRCDIR=/etc/X11/xinit/] [ > 27.375077]: IMSettings-Daemon: INFO: [XINPUTDIR=/etc/X11/xinit/xinput.d/] > > [ 27.375140]: IMSettings-Daemon: INFO: > [MODULEDIR=/usr/lib64/imsettings] > > [ 27.375204]: IMSettings-Daemon: INFO: > [MODULES=gsettings] > > [ 27.382049]: IMSettings-Daemon: INFO: X Display is > available [ 27.392989]: IMSettings-Daemon: INFO: > Unloading imesttings module: gsettings [ 27.393222]: > IMSettings-Daemon: INFO: imsettings-daemon is shut down. [ > 28.073604]: IMSettings-Daemon: INFO: Attempting to switch IM to X compose table [lang=en_GB.UTF-8, desktop=KDE-wayland, update=false] > > [ 28.403490]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 [ 28.403897]: > IMSettings-Daemon: INFO: no need to invoke any auxiliary > process for X compose table [ 28.404984]: GLib-GIO: > DEBUG: _g_io_module_get_default: Found default implementation dconf > (DConfSettingsBackend) for ‘gsettings-backend’ [ 28.405484]: > IMSettings-GSettings backend: INFO: Setting up xim:xim as gtk+ > immodule > > [ 36.817939]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 > > > > > > > > pre { background: transparent }pre.western { font-family: "Liberation > Mono", monospace; font-size: 10pt }pre.cjk { font-family: "Noto Sans > Mono CJK SC", monospace; font-size: 10pt }pre.ctl { font-family: > "Liberation Mono", monospace; font-size: 10pt }p { margin-bottom: > 0.25cm; line-height: 115%; background: transparent }[ 20.297670]: GLib-GIO: DEBUG: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for > ‘gsettings-backend’ imsettings information > > > XINPUTRC: /home/usr/.config/imsettings/xinputrc Fichier : > /home/usr/.config/imsettings/xinputrc -> > /etc/X11/xinit/xinput.d/xcompose.conf Taille : 37 Blocs : 8 > Blocs d'E/S : 4096 symbolic link Périphérique : 0/42Inœud : 137854 > Liens : 1 Accès : (0777/lrwxrwxrwx) UID : ( 1000/ usr) GID : ( > 1000/ usr) Contexte : unconfined_u:object_r:config_home_t:s0 > Accès : 2025-06-08 17:54:32.446602366 +0200 Modif. : 2025-06-08 > 17:54:32.241601294 +0200 Changt : 2025-06-08 17:54:32.241601294 +0200 > Créé : 2025-06-08 17:54:32.241601294 +0200 Is DBus enabled: yes Is > imsettings enabled: yes Is GTK+ supported: yes Is Qt supported: yes Is > Action needed: yes DESKTOP: KDE-wayland GUESS_DESKTOP: > $XDG_SESSION_TYPE DISABLE_IMSETTINGS: > IMSETTINGS_DISABLE_DESKTOP_CHECK: DBUS_SESSION_BUS_ADDRESS: > unix:path=/run/user/1000/bus GTK_IM_MODULE: QT_IM_MODULE: xim > XMODIFIERS: @im=none IMSETTINGS_MODULE: X compose table > IMSETTINGS_INTEGRATE_DESKTOP: yes IMSETTINGS_DISABLE_SYS_XINPUTRC: no > IMSETTINGS_DISABLE_USER_XINPUTRC: no IMSETTINGS_IGNORE_SESSION: > > > [ 26.319709]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 > > [ 26.333147]: IMSettings-Daemon: WARNING **: Unable to > open X Display. Input Method may not work. [ 26.335904]: > libnotify: DEBUG: SNAP app: (null) [ 27.374772]: > IMSettings-Daemon: INFO: Starting imsettings-daemon... [ > 27.374933]: IMSettings-Daemon: INFO: [HOME=/home/usr/.config/imsettings] [ 27.375010]: > IMSettings-Daemon: INFO: [XINPUTRCDIR=/etc/X11/xinit/] [ > 27.375077]: IMSettings-Daemon: INFO: [XINPUTDIR=/etc/X11/xinit/xinput.d/] > > [ 27.375140]: IMSettings-Daemon: INFO: > [MODULEDIR=/usr/lib64/imsettings] > > [ 27.375204]: IMSettings-Daemon: INFO: > [MODULES=gsettings] > > [ 27.382049]: IMSettings-Daemon: INFO: X Display is > available [ 27.392989]: IMSettings-Daemon: INFO: > Unloading imesttings module: gsettings [ 27.393222]: > IMSettings-Daemon: INFO: imsettings-daemon is shut down. [ > 28.073604]: IMSettings-Daemon: INFO: Attempting to switch IM to X compose table [lang=en_GB.UTF-8, desktop=KDE-wayland, update=false] > > [ 28.403490]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 [ 28.403897]: > IMSettings-Daemon: INFO: no need to invoke any auxiliary > process for X compose table [ 28.404984]: GLib-GIO: > DEBUG: _g_io_module_get_default: Found default implementation dconf > (DConfSettingsBackend) for ‘gsettings-backend’ [ 28.405484]: > IMSettings-GSettings backend: INFO: Setting up xim:xim as gtk+ > immodule > > [ 36.817939]: IMSettings-Daemon: WARNING **: Child > process exited with code 1 Can someone please give me some advice to succeed ?