Photo share by default? - eviltoast

This might sound antithetical to the privacy-by-default standard, but my wife and I currently share our photo rolls with each other (using Google Photos)–everything we take is automatically shared with the other.

Is there anything in Proton Drive/Photos that would allow this? Even if it’s only available within a family plan or something. I know that with Drive, we could share a directory and everything in that would be available to the other, but I don’t see this as an option in the photos.

Alternatively, I suppose we could both sign in to Proton Drive using a third account just for that purpose, but that’s less ideal.