Shared iCloud Photos Library

Has anyone made this work since this post below from BCPalmer in 2016 ? There were a few responses but not sure if any suggestions worked per the original request pasted below ?

"I'm having the same issue and would like my wife to have access to our entire photo library. She's the person who likes to get together with her friends to do scrapbooking and it doesn't work well when she can't access all of our photos. I know there are ways around this limitation, in my case using Dropbox, but it's not elegant and I'd like to use Apple Photos. Also, keeper of the Photo Library has been relegated to me as my wife is not the technical one."