Comment 6 for bug 1869752

Thank you. Now it's crystal clear what you see. :)

I still have a couple of questions:

One thought is that one or more packages are missing on your focal installation. To make sure everything is there, can you please do:

sudo apt update
sudo apt full-upgrade
sudo apt install ubuntu-desktop

Does that possible make a difference?

Also, even if you didn't say it, I assume that it's ibus-mozc you are using. You aren't possibly using some other IM framework such as fcitx?

Can you please run this command:

env | grep -E 'XMOD|_IM'

and let us know what it outputs.