FWIW I told it No, for the same reason my Win10 laptop has been nagging me to update but I've not let it install for a month - until I've finished whatever work I'm doing I'm not going to let a possibly badly written patch stack the OS and leave me rebuilding the machine from scratch (yes - I'm looking at you Windows - TWICE) or dealing with whatever beta-level release macOS is going to throw out that breaks remote access etc. that I need on my build server.
It's like trying to leave a time share presentation.
Feature updates and quality updates are handled differently in Windows 10. You can delay feature updates for a year, quality updates (security) can only be delayed for a month.
I'm not sure what specific thing you're referring to when you say "nagware", seem my first paragraph, but there's no persistent nagging in Windows 10.
It's under Settings -> Updates & Security -> Advanced Options on Pro.