A while back I made a patch that supports IME on Linux’s Wayland back-end.
I found this difficult to test because I’ve never used IME before and am guessing at the behavior users might want. The patch worked on a basic level (the IME input box opened at the text-cursor location for e.g.) but it needs further development since there were some glitches (from memory).
I’m curious if anyone is using IME on Wayland or interested in this functionality.
The patch can be found here: D17030.