As someone who does not use the Plasma desktop currently, I am a
little confused as to why this is a change proposal. If I'm reading it
correctly, Fedora configured Plasma to run on Wayland, which partially
broke IBus support. Now, IBus has been updated upstream to support
keyboard layout switching on Wayland. What I don't see here is why
upgrading IBus now would be considered a System-Wide change, and what
downsides, if any, this might have.
Best wishes,
Sebastian