There is a huge difference between an OEM Microsoft distro of win 10 and one you get when buying a PC from a name. Its faster and no bloatware.
Now some claim that it its illegal to kill the installation that comes with a PC because the "price" reflects the bloat wear and advertising income.
And if you want to control when the updates download turn your internet connections to metered then it will tell you when they are available but won't download them. You won't have control over what it downloads when you trigger it but at least you can trigger it before you go to bed and its done its thing by the time you wake up.