Ugh, no offence to someone who worked on it but sddm is such a failure of display manager. It was only introduced around 10 years ago replacing kdm. It was meant to be simple (duh, thus the name). It has all sorts of issues and is constantly being fixed, just for something super basic like login screen
@kde That's why I love KDE:
It has cute mascot
It is minimalistic
It is beautiful
It has a big amount of features
It has a big amount of good apps
It can tweaked
Plasma developer David Edmundson demonstrates how a desktop using Wayland, Qt6 and KWin can recover from a catastrophic crash as if nothing had happened.