The Login Screen Behavior settings page allows setting automatic user login and some other system things.
Now, in Plasma 6.0.0 … 6.0.4, it is located in the System Settings → Colors & Themes → Login Screen (SDDM) → Behaviour… (a button at the top of the page)
I don’t think this is an appropriate place for it since automatic login has nothing to do with colors and themes.
Also, the ‘Behavior…’ button is easy to overlook, and it’s name isn’t very informative.
So it’s pretty hard to find automatic login settings now.
I think, the page could be placed into the Security and Privacy category or maybe System category near the Users page.
Thanks for the links, I didn’t realize so much had already been done, thats really impressive. But yeah like the appearance settings for the lock screen, it seems some of them have been overlooked. Im contemplating making a topic listing whatever I feel has been left out.
It’s because it requires substantial code changes. Right now the SDDM KCM is self-contained, and only it needs to know about SDDM. If we move the behavior page of that KCM into the ksmserver KCM, we’ll need to teach ksmserver about SDDM all over again, and conditionalize it all to not show up if you’re using a different display manager (which is technically permitted). Thus ksmserver will also gain an optional dependency on SDDM, and we’re not too fond of optional dependencies these days. So, another minor challenge.
So this work isn’t impossible, but it will take some doing, and since nothing is broken right now, it doesn’t have the highest priority.