It appears even though Plasma is set to skip the confirmation screen for shutdown, restart or log out, Discover does not follow suit when the user selects "Restart automatically after installing packages". When I was doing the updates, I selected this option and the system showed the confirmation screen anyway. However, the rest of the system is set to skip the confirmation screen.
CORRECTION: It is "not" automatic updates that don't follow the confirmation screen bypass, it is the actual "restart" button that appears after completing the updates inside Discover.
Can confirm.
I've just tried it (on KDE Neon) and cannot reproduce the problem. Can you maybe run Discover on a terminal and see if you get any errors?
> Can you maybe run Discover on a terminal and see if you get any errors?
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
I just ran this again in the latest stable version of plasma and the behavior is still there. Checking the restart automatically button skips the confirmation screen and restarts the laptop without warning.
That's the opposite of what you originally reported, though, and matches what you said you wanted to happen. :)