Bill still likes to tell other companies how to do business. Some non-microsoft updates are not in the computer’s update system. Company computers for instance, have upgrades pushed out onto your computer when they want them installed. They have their own update manager.
In my case with Apple equipment, I have autoupdate turned on. As an OS upgrade or app becomes available, they are installed automatically. Apps right away, OS upgrades are usually performed overnight, a notice is provided. You have the option of installing right away. Some require a reboot, others don’t. But they never do it while you are working.