In fact, I'm willing to bet that if they'd added this feature and gated it behind iCloud Photos being enabled, we'd have different articles complaining about Apple making a cash grab by trying to get people to pay for premium storage. :P
As the article notes, this new feature is so "popular" that neither Apple nor the Apple media have bothered to mention it. AFAICT it's not even in Apple's document listing all the new features of iOS 18: https://www.apple.com/ios/ios-18/pdf/iOS_18_All_New_Features...
No, I didn't ask for a hypothetical set. I wanted the actual set of people.
I can try to turn down my natural inclination towards cautious phrasing, if you'd like? Get us on the same level. :D
Large set? Yes. Majority? No. CIRP says 2/3 of US Apple users pay for iCloud storage[0]. It's this popular for the exact reason you mentioned. Almost no one can fit their photo library into 5GB so they opt in to the cheap 50GB for $0.99/month. 50GB is enough for a lot of people.
[0] https://wccftech.com/paid-icloud-subscription-is-apples-most...
Well, I'll take back what I said about the majority. I do still think that the remaining 1/3 of users who don't have enough storage to turn on iCloud Photos qualify as what lapcat was asking for, though.
I know users who would prefer not to trust Apple for anything, and only pay for and use iCloud to backup the Desktop [and similar locations]. If they were to hear that their opt-in for iCloud means that Apple starts copying random things, they would not be happy.
[OT, I use Arq. But admit that iCloud is simpler, and it is not apples to apples.]
IMO, the fact that Apple backs up your keychain to the Mothership; and that this is a "default" behavior that will re-enable itself when shut off, reflects an attitude that makes me very distrustful of Apple.