iCloud photos has all of that except the self-host option. You may be aware - just saying as I didn't see it on your list, and the E2EE is somewhat new.
As someone who tried to organize a few hundred photos on iOS, the UX is severely crippled. For example, moving pictures from one album to another, or an album from one folder to another, are still unimplemented, among many other simple things.
It might have all those good features, but it lacks a practical user experience.
I’m currently using iCloud. It’s great, but the E2EE comes with the huge caveat that they scan your photos before encrypting, against a giant unaccountable database of hashes for bad stuff.
Even though I totally believe that the current set of hashes really does represent truly horrible stuff, I also suspect that it will expand over time to include anything that threatens those in power. In other words: they are coming for your Bernie memes.
So I would like to have a more secure option that doesn’t depend on the whims of the powerful to decide which images I’m allowed to own.
Apple shelved this feature a while ago, what you are thinking about is that it uses an on-device AI to scan for nudity in pictures sent to minors through iMessage, which doesn’t report anything back to apple.
Let’s hope it stays shelved then. In my experience, things are much easier to sneak into the details of some random update once the key functionality has been built and deployed. The root issue here is a loss of trust.
