Making a new topic since all the ones I found were locked
First, for anyone else looking for this, the location for the setting has changed, it is now under:
Colors and Themes / Login Screen (SDDM) and then clicking the behaviors button in the upper right corner
However, according to this page, I do not have a configured auto login. I tried just saving the changes on this screen, but I still automatically login.
Where else can I check?