Somehow has reset my keyboard layout to En-Us on Plasma 5 (Wayland) Plasma 6 (Wayland). Had to set it up back to what I use usually.
A bit annoying, but it takes 20 seconds to set it up back in the settings. Not a huge deal to me.
EDIT: Didn’t happen on my Manjaro Cinnamon system.
EDIT2: It somehow switched back to en-US after a reboot. Now it’s annoying more. Where does this fcitx5 thing comes from anyway? It got installed on my system during the update for seemingly no reason. I removed it entirely and it doesn’t cause any issue. I suspect this thing causes conflicts with Plasma’s own input management, hence why it reverts to en-US after booting.