If you use hibernate, you kinda have to turn off scheduled tasks, or else it starts up in the middle of the night to check for updates, then, potentially, run for hours.
Might have been more of a problem for me, as I have the PC in my bedroom.
Yep, this has happened when putting it into Sleep mode. Might as well happen in Hybrid Sleep. And in advanced power settings you can disable wake timers, but I'm not sure if it helps.
Tried automating the removal of scheduled tasks (like the Compatibility runner which made the laptop sound like an airplane) and snoozed the updates for a few weeks. In the end, it broke the Scheduler, the task was still launching, and had to reset the OS to a proper state. It's a love and hate relationship with this OS.
Might have been more of a problem for me, as I have the PC in my bedroom.