At launch, reboot timing can be controlled using active hours, allowing windows to find a time to update while the device isn't in use. Autopatch uses update compliance deadlines so if windows can't find a time to update outside of active hours, users will be notified, and a reboot will need to be scheduled within active hours. Additionally, this doc outlines a few scenarios around the end user experience and how they are handled in Autopatch: https://docs.microsoft.com/en-us/windows/deployment/windows-autopatch/operate/windows-autopatch-wqu-end-user-exp