Apple MacOs, Android and MS Windows have the ability to do all system updates and applications silently. Ubuntu can do security updates silently and allows us to do for softwares too, but we have to modify the system by working with the terminal and know the right procedure, as here: Silent updates . However, Ubuntu does not allow to choose this possibility in its parameters, such as a simple checkbox: "Enable all updates of Ubuntu, softwares and PPA silently (Yes / No).
Why make this important task so difficult for non-expert users?