I use sddm with a french keyboard. By default, sddm is set to use the english keyboard. If I switch the keyboard to french, it looks like the layout is still on english despite sddm saying that it is in french. Reproducible: Always I use KDE + Wayland + pipewire.
The problem is still here today. Switch the keyboard definition has no effect. 8 time of out 10, the keyboard is set to english and the other 2 times it's correctly detected as french.