For IBus, I selected the “IBus Wayland” virtual keyboard in KDE System Settings, installed ibus-libpinyin, and added ibus-libpinyin to the list of input methods in IBus settings. The input method works in Waterfox (basically Firefox), Betterbird (basically Thunderbird), KDE apps, MusicBrainz Picard, Zed editor, and probably other places. It does not work in Microsoft Edge, Discord (openasar), Code OSS, Wine, and probably other places. I tried setting the three variables (QT, GTK, and X11) only for those apps.
For Fcitx5, I tried both “Fcitx5” and “Fcitx5 Wayland (experimental” virtual keyboards, installed the Chinese addons and a few dictionaries, and added the Chinese layout. The little white rectangle bordered with my accent color that informs me I’ve changed to the Chinese layout shows up, but the input method is as if it’s not there at all.
Any help in solving either of these problems would be greatly appreciated.
It’s not easy to follow. Do not give up. Where did you get lost?
Do you see the Input Method icon in task bar?
Super+space is effective only when you are in an editor or in browser URL field etc.
I tried everything one more time, and it turns out I confused the “Pinyin” input method with the “Hanyu Pinyin Letters with AltGr dead keys” keyboard layout. Since the video was a bit old and clearly written for Plasma 5 (which Plasma 6—the current version—isn’t too compatible with), I thought that the input method name changed. I was wrong.