根据wiki 现在对于Xwayland/Electron的操作应为在~/.config/gtk-3.0/settings.ini中添加:
~/.config/gtk-3.0/settings.ini
[Settings] gtk-im-module = fcitx
为了以防万一,还可以顺便在~/.config/gtk-4.0/settings.ini中添加如上内容
~/.config/gtk-4.0/settings.ini