Basically the last thing keeping me locked into Google Photos is it's social features.

I see "external sharing" is mentioned but haven't found more information on that. Ideally I'd want the option to share an album with password protection, doesn't require an account to view, and allows comments on photos. Bonus would be to have a running album feed with view receipts per account.

I know that's a lot but wanted to be specific. I'm ready to migrate but haven't found a platform that has feature parity on this front.