Backspace Key repeat not working in certain flatpak apps (KDE/bazzite-dx:stable)

Small background, using IBus/Anthy, as it's generally more stable for Japanese than Fcitx. Also, this was originally Fedora Silverblue 36 many years ago, eventually rebased to ublue, then to bazzite, to bazzite-dx.

That said, I've been having an issue where GTK based apps (through flatpak) doesn't properly key-repeat. The most pronounced/annoying, by far, are all the terminal apps (Ptyxis and Gnome Terminal, again flatpak), where nothing key repeats. In Gnome Text Editor, the letters properly key repeat, but backspace doesn't. Arrow key repeat also doesn't work for me.

Non-flatpak apps, including KDE itself, key repeat works everywhere. Discord also works (despite being flatpak), but Brave does not.

Any idea's on what this is/how to fix this?
Solution
This seems to just be a Ibus/anthy bug with KDE.. Moving to FCITX works Configuring IME Input for Japanese Text?
Was this page helpful?