About two weeks ago I was able to download lots of photos my son shared with me through iCloud in an album he created. Now I can't seem to do that.

I'm using iCloud 12.2 on my PC, which runs Windows 10 Pro 64. Here are the options for iCloud Photos.
iCloud no longer supports downloads from shared albums??-image.png

At www.icloud.com there doesn't seem to be a way to select shared albums.

iCloud no longer supports downloads from shared albums??-image.png

So what am I doing wrong, or what has Apple changed in a way that the desired functionality is now hidden?