[RPi400] "System Settings" not really working

Hi everyone,

I continue my exploration of DEs/WMs with Budgie freshly installed on a µcard SD.
And like x86-64 here :
Budgie DE System settings not working
“System Settings” opened once and crashed definitively.
The solution was to install budgie-control-center from AUR :

sudo pacman -Runs gnome-control-center
yay -S cmake pkg-config
yay -S budgie-control-center

But after launch “System settings”, I can’t change language and “Automatic Login” doesn’t work.

Edit : “Automatic Date & Time” doesn’t work as well.