Maliit is selected in virtual keyboard settings, it shows up when using a KDE app like Dolphin or Konsole, but it doesn't show up when using a non-KDE app like VLC or Discord.
@KaKi87 Those apps are probably running under X11. Make sure they are running with native Wayland support, for Chromium apps you should add --ozone-platform=wayland --enable-wayland-ime to the command line arguments.