https://bugzilla.redhat.com/show_bug.cgi?id=1659748
--- Comment #25 from Lohan G lohang@gmail.com --- I just switched to Xorg. I am now able to type Sinhala in Libre Office without any issue. The look and feel is now identical to the Ubuntu 18.04 system I checked. That too has Gnome Xorg.
Problem with emacs still remains.
The issues I wanted to report regarding ibus-typing-booster are already reported by others. Example: https://bugzilla.redhat.com/show_bug.cgi?id=1637647 They all point to Wayland.