I don't want to use a computer whose greatest aspiration is to be a sales funnel even if I am personally strong-willed enough to say no when nagged.
macOS seriously never nags you about services. Service nags aren't classy. You can credibly accuse Apple of plenty of things, but having a lack of class isn't one.
You’re imagining a “greatest aspiration” that doesn’t exist. macOS has an iCloud login button in the Settings app and that’s about it.