Add Shared Album to Home Screen as a Widget

Duplicate the Shared Album into a Personal Album

You can create a local album that mirrors the Shared Album.

Here’s how:

1. Open Photos
2. Go to Shared Albums
3. Open the shared album you want on the Home Screen
4. Tap Select → Select All
5. Tap Add to… → New Album
6. Name it something like “Shared Album Widget”

Now this copied album can be used as a widget.