IME input in Linux Minecraft (Chinese, Japanese, Korean Input)
Update: On latest version of SwayWM, everything works OOTB with Fcitx5
To input CJK (Chinese, Japanese and Korean) languages in Linux Minecraft, you can install this mod CocoaInput.
If that's the case, I won't bother writing an article about it. The thing is that the mod is only officially available for 1.7 to 1.18, for the latest Minecraft 1.19 to 1.20, you'll need to compile the mod binary from an updated fork of it.